CN106685818A

CN106685818A - Message feedback method and device

Info

Publication number: CN106685818A
Application number: CN201611260865.7A
Authority: CN
Inventors: 熊海艳; 车树明; 倪斌
Original assignee: Beijing Huawei Digital Technologies Co Ltd
Current assignee: Beijing Huawei Digital Technologies Co Ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2017-05-17
Anticipated expiration: 2036-12-30
Also published as: CN106685818B

Abstract

The invention discloses a message feedback method and device, and belongs to the technical field of communication. The method includes the steps that when first user plane equipment can not provide services, control plane equipment sends user information corresponding to the first user plane equipment to second user plane equipment, and the second user plane equipment receives a keep-alive message sent by user equipment and feeds a confirmation message back to the user equipment according to the user information; when the first user plane equipment is restored to the state of providing services from the state of being incapable of providing services, the control plane equipment sends user information corresponding to the second user plane equipment to the first user plane equipment, and the first user plane equipment receives a keep-alive message sent by the user equipment and feeds a confirmation message back to the user equipment according to the user information. The message feedback method and device solve the problem that to keep a user online, it is needed to backup user information on a main router to a standby router in real time, and consequently too many equipment resources of the standby router are occupied.

Description

Message feedback method and device

Technical field

The present invention relates to communication technical field, more particularly to a kind of message feedback method and device.

Background technology

As shown in figure 1, broadband access network is generally included：Access switch 110, BRAS (Broadband Remote Access Server Control Plane, Broadband Remote Access Server) 120 and uplink network equipment 130, Yong Hushe Standby 140 are linked into internet 150 by access switch 110, BRAS 120, uplink network equipment 130.

Active router (master) 121 and standby router (backup) 122 are generally included in BRAS 120, in active router 121 and standby router 122 on configure VRRP (Virtual Router Redundancy Protocol, virtual route redundancy association View) after, active router 121 and standby router 122 are virtually a router, and this virtual router possesses virtual IP (Internet Protocol, the agreement interconnected between network) address and MAC (Media Access Control, media interviews Control) address, what user equipment 140 was perceived is this virtual router, to actual active router 121 and standby router 122 Do not perceive.In usual two routers VRRP priority it is high as active router 121, active router 121 is realized real Forwarding capability, when active router 121 breaks down, standby router 122 takes over the main road of failure as new active router By the work of device 121.In order to ensure the quick discovery of failure, BFD can be used on active router 121 and standby router 122 (Bidirectional Forwarding Detection, two-way converting inspection) technology carries out fault-finding.Active router 121 On the interface of BFD and up-link bind, the state of the up-link for detecting active router 121, up-link refers to Link between active router 121 and uplink network equipment 130；The BFD and IP of active router 121 on standby router 122 is tied up Fixed, the state of the downlink for detecting active router 121, downlink refers to active router 121 and access switch 110 Between link.After BFD is configured, opposite end of the detection messages to binding can be periodically sent, not returned when BFD detects opposite end At once, the state of BFD is changed into DOWN, represents failure, and then BFD can carry out active-standby switch by informing VRRP at once.Such as：Work as main road When the interface fault of up-link is detected by BFD by device 121, BFD states are changed into DOWN, and the BFD in active router 121 leads to Know VRRP the first VRRP priority of reduction in active router 121 so that it is active router that standby router 122 is switched fast；When When standby router 122 detects primary router failure by BFD, BFD states are changed into DOWN, and the BFD in standby router 122 is notified VRRP in standby router 122 improves the 2nd VRRP priority so that it is active router that standby router 122 is switched fast.Wherein, First VRRP priority is the VRRP priority of active router, and the 2nd VRRP priority is the VRRP priority of standby router.

User equipment 140 keeps presence after reaching the standard grade by keep Alive Packet.Active-standby switch is carried out in BRAS 120 When, BRAS 120 receives the keep Alive Packet that user equipment 140 is reported, and standby router 122 is receiving what user equipment 140 was reported Reached the standard grade with the corresponding user profile of user equipment 140, confirmation user equipment 140, it is necessary to find during keep Alive Packet, Ran Houxiang The feedback acknowledgment message of user equipment 140, so as to ensure that user equipment 140 does not go offline in active-standby switch.In the prior art, user After equipment 140 is reached the standard grade by active router 121, the user profile on active router 121 is by real-time synchronization to standby router 122 On, when active router 121 breaks down, standby router 122 can at once switch to new active router, due to standby router Synchronously there is the user profile of user equipment 140 in 122, therefore standby router 122 is receiving the keep Alive Packet of user equipment 140 After can feedback acknowledgment message so that user equipment 140 does not go offline.

In order to keep user not go offline, the user profile on active router 121 needs to back up in realtime to standby router 122 On, worked on so that standby router 122 can be immediately switched to when active router 121 breaks down, and meeting of backing up in realtime The excessive device resource for taking standby router 122.

The content of the invention

Need to back up in realtime onto standby router to solve the user profile on active router in the prior art, caused The problem of the device resources for taking standby router, the embodiment of the invention provides a kind of message feedback method and device more.It is described Technical scheme is as follows：

First aspect, there is provided a kind of message feedback method, the message feedback method is applied in the equipment of second user face, When first user face equipment due to upgrading or the first user face affiliated link of equipment break down cause first user face equipment without When method provides service, second user face equipment obtains the corresponding user profile of first user face equipment from chain of command equipment, the After two user plane equipment get user profile, the keep Alive Packet that the user equipment that second user face equipment interconnection is received sends is entered Row response, to user equipment feedback acknowledgment message.Wherein, second user face equipment first user face equipment provide service when State is stand-by state, and first user face equipment and second user face equipment are used to realize subscriber dialing message up sending, forward table The reception of item and customer flow forwarding, chain of command equipment are used to realize the treatment of user's access protocol and user management.

By the way that when first user face equipment cannot provide service, second user face equipment obtains first from chain of command equipment The corresponding user profile of user plane equipment, according to user profile to send keep Alive Packet user equipment feedback acknowledgment message, by The user plane equipment of the user profile of the first user face equipment that need not be backed up in realtime in second user face equipment, i.e. stand-by state The user profile of the user plane equipment of the major state that need not back up in realtime, therefore the excessive user for taking stand-by state will not be produced The problem of face device resource.

Further, since second user face equipment is after user profile is received, can be to transmission keep-alive according to user profile The user equipment feedback acknowledgment message of message, so that when first user face equipment cannot provide service, user equipment energy Enough continue to reach the standard grade by second user face equipment.

In the first possible implementation method of first aspect, first user face equipment leads to not provide due to upgrading Service, second user face equipment receives the first user face equipment pair that chain of command equipment is issued in the device upgrade of first user face The user profile answered.Including the scheduled duration and escalation process before upgrading during upgrading here, scheduled duration is at least above second User plane equipment receives the duration that chain of command equipment issues user profile.

Because first user face equipment cannot provide service in upgrading, therefore first user face equipment is in upgrading, the Two user plane equipment receive the corresponding user profile of first user face equipment that chain of command equipment is issued, so as in first user face First user face equipment can be taken over during device upgrade carries out the forwarding work of customer flow.Because second user face sets Standby is that the scheduled duration before the device upgrade of first user face just receives the user profile that chain of command equipment is issued, and pre- timing The duration that user profile is issued more than chain of command equipment long, therefore during the device upgrade of first user face, second user face User profile is stored in equipment, the message that user equipment sends can have been responded, so that user equipment exists Will not be gone offline during active-standby switch.

With reference to the first possible implementation method of first aspect or first aspect, in second possible implementation method In, in first user face during device upgrade, second user face equipment gets first user face equipment correspondence from chain of command equipment User profile after, second user face equipment is by two ways by the VRRP states of second user face equipment from stand-by state Switching is main state.First way is that second user face equipment receives the priority raising order that chain of command equipment sends, and The 2nd VRRP priority that order improves second user face equipment is improved according to priority；The second way is to receive first user The VRRP priority that face equipment sends, a VRRP priority is that first user face equipment is receiving chain of command equipment Ordered the original VRRP priority of first user face equipment according to priority reduction after the priority reduction order of transmission Obtained after reduction.Is determined after being interacted by VRRP notification packets between first user face equipment and second user face equipment 2nd VRRP priority of two user plane equipment is higher than a VRRP priority of first user face equipment, then second user face sets Standby VRRP states are main state from stand-by state switching.

Because second user face equipment is after the corresponding user profile of first user face equipment is received, control is just received The priority of face equipment method transmission processed improves order, or receives first user face equipment according to priority reduction order reduction A VRRP priority, then the VRRP states of second user face equipment by stand-by state switching be main state, second user Face equipment takes over first user face equipment and continues offer service so that had user to believe in the equipment of second user face in switching Breath, so that due to not having user profile in the equipment of second user face so that the feelings that are dropped of customer flow when will not produce switching Condition.

It is possible with reference to the first possible implementation method of first aspect, first aspect or second of first aspect Implementation method, in the third possible implementation method, when the device upgrade of first user face is finished, second user face equipment is led to Cross two ways and the VRRP states of second user face equipment are switched into stand-by state from major state.First way is the second use Family face equipment receives the priority reduction order that chain of command equipment sends, and reduces second user face according to priority reduction order 2nd VRRP priority of equipment；The second way is to receive the VRRP priority that first user face equipment sends, and this One VRRP priority is by first user face after the priority raising that first user face equipment sends according to chain of command equipment is ordered What the first VRRP priority of equipment was obtained after improving.It is logical by VRRP between first user face equipment and second user face equipment Twoth VRRP of the VRRP priority higher than second user face equipment of first user face equipment is determined after announcement message interaction Priority, then the VRRP states of second user face equipment switch to stand-by state from major state.Wherein, second user face equipment connects The priority reduction order of chain of command equipment transmission is received, or first user face equipment receives the preferential of chain of command equipment transmission Level improves order, is performed after the user profile that chain of command equipment is issued is received after the device upgrade of first user face is finished 's.

After being finished due to the device upgrade of first user face, first user face equipment after user profile is received, chain of command Equipment just issues priority to first user face equipment and improves order, or priority reduction life is issued to second user face equipment Order so that after the device upgrade of first user face is finished, in the equipment of first user face in the case of the user profile that is stored with The VRRP states of second user face equipment are switched into stand-by state by major state, and the VRRP states of first user face equipment by Stand-by state switching is main state, and first user face equipment takes over second user face equipment and continues offer service so that in switching When first user face equipment in had user profile so that when will not produce switching due in the equipment of first user face without using Family information causes the situation that customer flow is dropped.

Second possible reality of the first possible implementation method, first aspect with reference to first aspect, first aspect The third possible implementation method of mode or first aspect is applied, in the 4th kind of possible implementation method, in first user Link where face equipment due to when failure causes the first user face equipment cannot to provide service, the VRRP shapes of second user face equipment State is main state from stand-by state switching, and sends VRRP state switching notices to chain of command equipment, then receives chain of command and sets The standby corresponding user profile of first user face equipment for issuing.Wherein, user profile is that chain of command equipment receives second user Sent after the VRRP state switching notices that face equipment sends.

Due to when link where the equipment of first user face breaks down, the VRRP states of second user face equipment are from standby State switching is main state, and issues user profile to the transmission state switching notice request of chain of command equipment so that due to event When barrier first user face equipment cannot provide service, second user face equipment can continue to offer service, realize to customer flow Forwarding.

Second possible reality of the first possible implementation method, first aspect with reference to first aspect, first aspect The 4th kind of possible implementation method of mode, the third possible implementation method of first aspect or first aspect is applied, In five kinds of possible implementation methods, second user face equipment is detecting first user face equipment or first user face by BFD When the downlink of equipment occurs, the 2nd VRRP priority of second user face equipment is voluntarily improved so that the 2nd VRRP is preferential Level is higher than a VRRP priority of first user face equipment, and then second user face equipment is cut VRRP states by stand-by state It is changed to major state；When first user face equipment is broken down by the up-link that BFD detects first user face equipment, the One user plane equipment voluntarily reduces a VRRP priority so that second of a VRRP priority less than second user face equipment VRRP priority, then second user face equipment receive reduce after a VRRP priority, by second user face equipment VRRP states are main state from stand-by state switching.

Because when the up-link of first user face equipment breaks down, first user face equipment can be visited by BFD Measure uplink failure, and voluntarily reduce a VRRP priority, in first user face equipment or first user face equipment When downlink breaks down, second user face equipment can detect first user face equipment or first user face by BFD The downlink failure of equipment, and the 2nd VRRP priority is voluntarily improved, finally cause that a VRRP priority is less than second VRRP priority, so that the VRRP states of second user face equipment are main state by stand-by state switching, takes over the first use Family face equipment continues offer service.

Second possible reality of the first possible implementation method, first aspect with reference to first aspect, first aspect Apply the 4th kind of possible implementation method or first of mode, the third possible implementation method of first aspect, first aspect 5th kind of possible implementation method of aspect, in the 6th kind of possible implementation method, in first user face, equipment can not be provided During service, when the keep Alive Packet of user equipment transmission is received, whether inquiry is stored with and keep-alive report second user face equipment The corresponding user profile of text, if in the presence of second user face equipment is according to user profile to the user equipment for sending keep Alive Packet Send confirmation message；If not existing, keep Alive Packet is sent to chain of command equipment by second user face equipment, by chain of command equipment Confirmation message is sent to user equipment according to user profile.Wherein, on a user device after line, this is stored with chain of command equipment The whole user profile of user equipment, there is provided the user equipment that is stored with the user plane equipment of service is forwarded with customer flow Related user profile.

Because second user face equipment is when the keep Alive Packet of user equipment transmission is received, first inquire about whether itself stores Have user profile corresponding with keep Alive Packet, second user face equipment when inquiry is less than corresponding user profile, by keep-alive report Text reports chain of command equipment and is responded so that before second user face equipment receives user profile, user equipment according to Confirmation message can be so received, so that user equipment will not go offline.

Second possible reality of the first possible implementation method, first aspect with reference to first aspect, first aspect Apply the 4th kind of possible implementation method, first aspect of mode, the third possible implementation method of first aspect, first aspect The 5th kind of possible implementation method or first aspect the 6th kind of possible implementation method, in the 7th kind of possible embodiment party In formula, when the uplink failure of first user face equipment recovers, first user face equipment detects up-link by BFD After fault recovery, first state change information is sent to chain of command equipment, inform that chain of command equipment first user face equipment is recovered Normally, using the teaching of the invention it is possible to provide service.Chain of command equipment issues after first state change information is received to first user face equipment The corresponding user profile of two user plane equipment, after user profile is issued and finished, chain of command equipment is sent out to first user face equipment The first switching notice is sent, for notifying that first user face equipment improves a VRRP priority so that a VRRP priority is high In the 2nd VRRP priority, second user face equipment is cut VRRP states by major state after a VRRP priority is received Gain stand-by state.When the downlink failure of first user face equipment or first user face equipment is recovered, second user face Equipment after the downlink failure that BFD detects first user face equipment or first user face equipment is recovered, to chain of command Equipment sends the second state change information, informs that chain of command equipment first user face equipment recovers normal, and chain of command equipment is connecing After receiving the second state change information, the corresponding user profile of second user face equipment is issued to first user face equipment, with Family information is issued after finishing, and chain of command equipment sends the second switching notice to second user face equipment, for notifying second user Face equipment the 2nd VRRP priority of reduction so that the 2nd VRRP priority is less than a VRRP priority, second user face equipment VRRP states are switched back into stand-by state by major state.

Due in link failure recovery where the equipment of first user face, for the up-link of first user face equipment, First user face equipment can detect fault recovery by BFD, for first user face equipment or first user face equipment When downlink failure is recovered, second user face equipment can detect fault recovery by BFD, by informing chain of command equipment Link failure recovery where the equipment of first user face, chain of command equipment issues second user face equipment pair to first user face equipment The user profile answered, notifies that second user face equipment switches to stand-by state by major state after user profile is issued and finished, and makes Obtain in link failure recovery where the equipment of first user face, first user face equipment allows hand over back major state and continues to provide clothes Business.

Further, since chain of command equipment first issues user profile, switching notice is retransmited so that first user face equipment exists When fault recovery switches back into major state, the problem that customer flow will not be produced to lose.

Second possible reality of the first possible implementation method, first aspect with reference to first aspect, first aspect Apply the 4th kind of possible implementation method, first aspect of mode, the third possible implementation method of first aspect, first aspect The 5th kind of possible implementation method, the 6th kind of possible implementation method of first aspect or first aspect the 7th kind of possibility Implementation method, in the 8th kind of possible implementation method, the BFD in first user face equipment and second user face equipment matches somebody with somebody The delay UP times are equipped with, and postpone the duration of UP times and issue user profile to first user face equipment more than chain of command equipment Duration.Wherein, UP is a kind of state of BFD, represents normal, corresponding, and when breaking down, the state of BFD is DOWN.

By being the BFD reconfiguration latency UP times so that in link failure recovery where the equipment of first user face, BFD's State will not switch to normally at once, it is to avoid be cut in the case of being also not received by user profile in the equipment of first user face When major state offer service is provided, the problem for causing customer flow to be lost.

Further, since the duration for postponing the UP times issues the duration of user profile more than chain of command equipment so that second uses Family face equipment will not just switch back into stand-by state in the case where user profile is not handed down to first user face equipment all, it is to avoid First user face equipment causes the situation of certain customers' traffic loss in the service of offer.

Second aspect, there is provided a kind of message feedback method, the message feedback method is applied in the equipment of first user face, When first user face equipment is by that cannot provide service recovery to provide service state, i.e., link where the equipment of first user face is extensive When multiple normal, first user face equipment obtains the corresponding user profile of second user face equipment from chain of command equipment, when the first use When family face equipment receives the keep Alive Packet of user equipment transmission, first user face equipment is according to the user profile for receiving to hair The user equipment of keep Alive Packet is sent to send confirmation message.Wherein, first user face equipment provides service in second user face equipment When state be the state of stand-by state, i.e. first user face equipment when first user face equipment cannot provide service for standby State, first user face equipment and second user face equipment be used for realize subscriber dialing message up sending, forwarding-table item reception with And customer flow forwarding, chain of command equipment is for realizing the treatment of user's access protocol and user management.

By first user face equipment from cannot provide service recovery for provide service state when, first user face equipment The corresponding user profile of second user face equipment is obtained from chain of command equipment, according to user profile to the user for sending keep Alive Packet Equipment feedback acknowledgment message, the second user face that need not be backed up in realtime when that cannot provide service due to first user face equipment is set The user plane equipment of standby user profile, i.e. stand-by state need not back up in realtime major state user plane equipment user letter Breath, therefore the problem of the excessive user plane device resource for taking stand-by state will not be produced.

Further, since first user face equipment is after user profile is received, can be to transmission keep-alive according to user profile The user equipment feedback acknowledgment message of message, so that when first user face equipment recovers offer service, user equipment energy Enough continue to reach the standard grade by first user face equipment.

In the first possible implementation method of second aspect, when the device upgrade of first user face is finished, first uses From stand-by state switching be main state the VRRP states of first user face equipment by two ways by family face equipment.The first side Formula is that first user face equipment receives the priority raising order that chain of command equipment sends, and is improved according to priority raising order First VRRP priority of first user face equipment；The second way is that the 2nd VRRP that reception second user face equipment sends is excellent First level, by the after the priority reduction order that the 2nd VRRP priority is second user face equipment to be sent according to chain of command equipment Obtained after the 2nd VRRP priority reduction of two user plane equipment.Lead between first user face equipment and second user face equipment Determine a VRRP priority of first user face equipment higher than second user face equipment after crossing the interaction of VRRP notification packets 2nd VRRP priority, then the VRRP states of first user face equipment from stand-by state switching be main state.Wherein, first user The priority that face equipment receives the transmission of chain of command equipment improves order, or second user face equipment receives chain of command equipment hair The priority reduction order sent, is that user's letter that chain of command equipment is issued is received after the device upgrade of first user face is finished Performed after breath.

After being finished due to the device upgrade of first user face, first user face equipment after user profile is received, chain of command Equipment just issues priority to first user face equipment and improves order, or priority reduction life is issued to second user face equipment Order so that after the device upgrade of first user face is finished, in the equipment of first user face in the case of the user profile that is stored with By the VRRP states of first user face equipment by stand-by state switching be main state, and the VRRP states of second user face equipment by Major state switches to stand-by state, and first user face equipment takes over second user face equipment and continues offer service so that in switching When first user face equipment in had user profile so that when will not produce switching due in the equipment of first user face without using Family information causes the situation that customer flow is dropped.

With reference to the first possible implementation method of second aspect or second aspect, in second possible implementation method In, in first user face during device upgrade, second user face equipment gets first user face equipment correspondence from chain of command equipment User profile after, first user face equipment is cut the VRRP states of first user face equipment from major state by two ways It is changed to stand-by state.First way is that first user face equipment receives the priority reduction order that chain of command equipment sends, and A VRRP priority of first user face equipment is reduced according to priority reduction order；The second way is to receive second user The 2nd VRRP priority that face equipment sends, the 2nd VRRP priority is that second user face equipment is receiving chain of command equipment The priority of transmission improves order by the 2nd original VRRP priority of second user face equipment after improving order according to priority Obtained after raising.Is determined after being interacted by VRRP notification packets between first user face equipment and second user face equipment 2nd VRRP priority of two user plane equipment is higher than a VRRP priority of first user face equipment, then first user face sets Standby VRRP states switch to stand-by state from major state.

Because second user face equipment is after the corresponding user profile of first user face equipment is received, control is just received The priority of face equipment method transmission processed improves order, or receives first user face equipment according to priority reduction order reduction A VRRP priority, then the VRRP states of first user face equipment stand-by state, second user are switched to by major state Face equipment takes over first user face equipment and continues offer service so that had user to believe in the equipment of second user face in switching Breath, so that due to not having user profile in the equipment of second user face so that the feelings that are dropped of customer flow when will not produce switching Condition.

It is possible with reference to the first possible implementation method of second aspect, second aspect or second of second aspect Implementation method, in the third possible implementation method, when the uplink failure of first user face equipment recovers, first uses Family face equipment sends first state change information after BFD detects uplink failure recovery to chain of command equipment, informs Chain of command equipment first user face equipment recovers normal, using the teaching of the invention it is possible to provide service.Chain of command equipment is receiving first state change After information, the corresponding user profile of second user face equipment is issued to first user face equipment, after user profile is issued and finished, Chain of command equipment sends the first switching notice to first user face equipment, for notifying that first user face equipment improves a VRRP Priority so that a VRRP priority is higher than the 2nd VRRP priority, and first user face equipment is by VRRP states by standby shape State switches back into major state.When the downlink failure of first user face equipment or first user face equipment is recovered, second user Face equipment after the downlink failure that BFD detects first user face equipment or first user face equipment is recovered, to control Face equipment sends the second state change information, informs that chain of command equipment first user face equipment recovers normal, and chain of command equipment exists After receiving the second state change information, the corresponding user profile of second user face equipment is issued to first user face equipment, User profile is issued after finishing, and chain of command equipment sends the second switching notice to second user face equipment, for notifying the second use Family face equipment the 2nd VRRP priority of reduction so that the 2nd VRRP priority is less than a VRRP priority, and first user face sets For when the 2nd VRRP priority is received, the VRRP states of first user face equipment are switched back into major state by stand-by state.

Due in link failure recovery where the equipment of first user face, for the up-link of first user face equipment, First user face equipment can detect fault recovery by BFD, for first user face equipment or first user face equipment When downlink failure is recovered, second user face equipment can detect fault recovery by BFD, by informing chain of command equipment Link failure recovery where the equipment of first user face, chain of command equipment issues second user face equipment pair to first user face equipment The user profile answered, notifies that first user face equipment is main state by stand-by state switching after user profile is issued and finished, and makes Obtain in link failure recovery where the equipment of first user face, first user face equipment allows hand over back major state and continues to provide clothes Business.

Second possible reality of the first possible implementation method, second aspect with reference to second aspect, second aspect The third possible implementation method of mode or second aspect is applied, in the 4th kind of possible implementation method, works as first user When face equipment is broken down by the up-link that BFD detects first user face equipment, first user face equipment is voluntarily reduced First VRRP priority so that a VRRP priority less than second user face equipment the 2nd VRRP priority, then first The VRRP states of first user face equipment are switched to stand-by state by user plane equipment from major state；Second user face equipment is logical When crossing BFD and detecting the downlink of first user face equipment or first user face equipment and occur, second user face is voluntarily improved 2nd VRRP priority of equipment so that the 2nd VRRP priority is higher than a VRRP priority of first user face equipment, so When the 2nd VRRP priority is received, first user face equipment is switched VRRP states by major state to first user face equipment afterwards It is stand-by state.

Because when the up-link of first user face equipment breaks down, first user face equipment can be visited by BFD Measure uplink failure, and voluntarily reduce a VRRP priority, in first user face equipment or first user face equipment When downlink breaks down, second user face equipment can detect first user face equipment or first user face by BFD The downlink failure of equipment, and the 2nd VRRP priority is voluntarily improved, finally cause that a VRRP priority is less than second VRRP priority, so that the VRRP states of first user face equipment switch to stand-by state by major state so that second uses Family face equipment takes over first user face equipment and continues offer service.

Second possible reality of the first possible implementation method, second aspect with reference to second aspect, second aspect The 4th kind of possible implementation method of mode, the third possible implementation method of second aspect or second aspect is applied, In five kinds of possible implementation methods, the BFD in first user face equipment and second user face equipment is configured with the delay UP times, And postpone the duration that the duration of UP times issues user profile more than chain of command equipment to first user face equipment.Wherein, UP It is a kind of state of BFD, represents normal, corresponding, when breaking down, the state of BFD is DOWN.

Further, since the duration for postponing the UP times issues the duration of user profile more than chain of command equipment so that first uses Family face equipment will not just switch back into major state in the case where user profile is not handed down to first user face equipment all, it is to avoid First user face equipment causes the situation of certain customers' traffic loss in the service of offer.

The third aspect, there is provided a kind of message feedback method, the message feedback method is applied in chain of command equipment, One user plane equipment is because when upgrading or place link failure cannot provide service, chain of command equipment is sent out to second user face equipment Send first user face equipment corresponding user profile, second user face equipment after user profile is received, when second user face When information receives the keep Alive Packet of user equipment transmission, send true to the user equipment for sending keep Alive Packet according to user profile Recognize message；It is offer service state from service recovery cannot be provided when first user face equipment is finished or fault recovery in upgrading When, chain of command equipment sends the corresponding user profile of second user face equipment, first user face equipment to first user face equipment After user profile is received, when first user face equipment receives the keep Alive Packet of user equipment transmission, believed according to user Cease and send confirmation message to the user equipment for sending keep Alive Packet.Wherein, second user face equipment is carried in first user face equipment State during for service is stand-by state, and state of the second user face equipment when first user face equipment cannot provide service is Major state, first user face equipment and second user face equipment are used to realize the reception of subscriber dialing message up sending, forwarding-table item And customer flow forwarding, chain of command equipment is for realizing the treatment of user's access protocol and user management.

By the way that when first user face equipment cannot provide service, chain of command equipment sends first to second user face equipment The corresponding user profile of user plane equipment so that second user face equipment sets according to user profile to the user for sending keep Alive Packet Standby feedback acknowledgment message, it is because second user face equipment need not back up in realtime the user profile of first user face equipment, i.e., standby The user profile of the user plane equipment of major state that need not be backed up in realtime with the user plane equipment of state, therefore will not produce excessive Take the problem of the user plane device resource of stand-by state.

By first user face equipment from cannot provide service recovery to provide service state when, chain of command equipment is to the One user plane equipment sends the corresponding user profile of second user face equipment so that first user face equipment according to user profile to The user equipment feedback acknowledgment message of keep Alive Packet is sent, because first user face equipment need not be real when that cannot provide service When backup second user face equipment user profile, i.e. the user plane equipment of stand-by state need not back up in realtime the use of major state The user profile of family face equipment, therefore the problem of the excessive user plane device resource for taking stand-by state will not be produced.

In the first possible implementation method of the third aspect, in first user face during device upgrade, chain of command equipment Active-standby switch is carried out to first user face equipment and second user face equipment by two ways, first way is that chain of command sets Standby to send priority reduction order to first user face equipment, first user face equipment drops after priority reduction order is received First VRRP priority of low first user face equipment, due to VRRP priority reduction, a VRRP priority is less than the 2nd VRRP priority of two user plane equipment, the VRRP states of first user face equipment switch to stand-by state from major state； The second way is that chain of command equipment sends priority raising order to second user face equipment, and second user face equipment is being received The 2nd VRRP priority of second user face equipment is improved after improving order to priority, because the 2nd VRRP priority is improved, , higher than a VRRP priority of first user face equipment, the VRRP states of second user face equipment are from standby for 2nd VRRP priority Switched with state and be main state.It is at least big including the scheduled duration and escalation process before upgrading, scheduled duration during upgrading here The duration that chain of command equipment issues user profile is received in second user face equipment.

Because first user face equipment cannot provide service in upgrading, thus chain of command equipment need it is ready in advance Measure, the corresponding user profile of first user face equipment is issued to second user face equipment, after distributing user profile under, to One user plane equipment sends priority reduction order or sends priority to second user face equipment and improves order so that first uses Family face equipment and second user face equipment carry out active-standby switch, and so as to ensure that first user face equipment in upgrading, second uses Family face equipment can continue to offer service.

Because chain of command equipment is scheduled duration before the device upgrade of first user face just under the equipment of second user face Hair user profile, and scheduled duration issues the duration of user profile more than chain of command equipment, therefore in first user face equipment In escalation process, user profile is stored in the equipment of second user face, the message that user equipment sends can have been rung Should, so that user equipment will not go offline in active-standby switch.

With reference to the first possible implementation method of the third aspect or the third aspect, in second possible implementation method In, when the device upgrade of first user face is finished, chain of command equipment is by two ways again to first user face equipment and the Two user plane equipment carry out active-standby switch, and first way is that chain of command equipment sends priority raising to first user face equipment Order, first user face equipment is preferential in the VRRP for receiving raising first user face equipment after priority improves order Level, because a VRRP priority is improved, a VRRP priority is higher than the 2nd VRRP priority of second user face equipment, the The VRRP states of one user plane equipment are main state from stand-by state switching；The second way is chain of command equipment to second user Face equipment sends priority reduction order, and second user face equipment reduces second user face after priority reduction order is received 2nd VRRP priority of equipment, due to the reduction of the 2nd VRRP priority, the 2nd VRRP priority is less than first user face equipment A VRRP priority, the VRRP states of second user face equipment switch to stand-by state from major state.

Because first user face equipment can provide service after upgrading is finished, therefore chain of command equipment can be used second The user profile of family face equipment is handed down to first user face equipment, after distributing user profile under, is sent out to first user face equipment Send priority to improve order or send priority reduction order to second user face equipment so that first user face equipment and second User plane equipment carries out active-standby switch, so that first user face equipment can continue to offer service after upgrading is finished.

It is possible with reference to the first possible implementation method of the third aspect, the third aspect or second of the third aspect Implementation method, in the third possible implementation method, in first user face during the uplink failure of equipment, first user face Equipment detects uplink failure by BFD, a VRRP priority can be voluntarily reduced, in first user face equipment or first During the downlink failure of user plane equipment, second user face equipment detects first user face equipment or the first use by BFD The downlink failure of family face equipment, can voluntarily improve the 2nd VRRP priority, and first user face equipment and second user face set Determine that a VRRP priority is less than the 2nd VRRP priority by VRRP notification packets between standby, then second user face equipment to Chain of command equipment sends VRRP state switching notices, and chain of command equipment, can be to second after VRRP state switching notices are received User plane equipment sends the corresponding user profile of first user face equipment.

Due to when link where the equipment of first user face breaks down, first user face equipment and second user face equipment Active-standby switch can be voluntarily carried out, then second user face equipment informs the situation that VRRP states switch to chain of command equipment, control Face equipment issues the corresponding user profile of first user face equipment to second user face equipment so that in first user face equipment institute When link breaks down, second user face equipment can take over first user face equipment and continue offer service.

Second possible reality of the first possible implementation method, the third aspect with reference to the third aspect, the third aspect The third possible implementation method of mode or the third aspect is applied, in the 4th kind of possible implementation method, in first user When face equipment cannot provide service, second user face equipment when the keep Alive Packet of user equipment transmission is received, when inquiring When not existing user profile corresponding with keep Alive Packet in second user equipment, second user face equipment reports keep Alive Packet Chain of command equipment treatment, chain of command equipment receives the keep Alive Packet of the user equipment that second user face equipment sends, according to user Information is to user equipment feedback acknowledgment message.

Because chain of command equipment is not stored with use corresponding with keep Alive Packet in second user face equipment query to itself During the information of family, receive keep Alive Packet that second user face equipment reports and responded so that equipment is received in second user face To before user profile, user equipment can still receive confirmation message, so that user equipment will not go offline.

Second possible reality of the first possible implementation method, the third aspect with reference to the third aspect, the third aspect The 4th kind of possible implementation method of mode, the third possible implementation method of the third aspect or the third aspect is applied, In five kinds of possible implementation methods, when the uplink failure of first user face equipment recovers, first user face equipment passes through BFD is detected after uplink failure recovers, and first state change information is sent to chain of command equipment, informs chain of command equipment the One user plane equipment recovers normal, using the teaching of the invention it is possible to provide service.Chain of command equipment after first state change information is received, to first User plane equipment issues the corresponding user profile of second user face equipment, after user profile is issued and finished, chain of command equipment to First user face equipment sends the first switching notice, for notifying that first user face equipment improves a VRRP priority so that First VRRP priority is higher than the 2nd VRRP priority.When the downlink event of first user face equipment or first user face equipment When barrier recovers, second user face equipment detects the downlink of first user face equipment or first user face equipment by BFD After fault recovery, the second state change information is sent to chain of command equipment, inform that chain of command equipment first user face equipment is recovered Normally, chain of command equipment issues second user face equipment after the second state change information is received to first user face equipment Corresponding user profile, after user profile is issued and finished, it is logical that chain of command equipment sends the second switching to second user face equipment Know, for notifying second user face equipment the 2nd VRRP priority of reduction so that the 2nd VRRP priority is excellent less than a VRRP First level.

Fourth aspect, there is provided a kind of message feedback device, the message feedback device is applied in the equipment of second user face, Including Unit at least one, the unit of the message feedback device is respectively used to realize the message feedback side of above-mentioned first aspect The step of correspondence in method.

5th aspect, there is provided a kind of message feedback device, the message feedback device is applied in the equipment of first user face, Including Unit at least one, the unit of the message feedback device is respectively used to realize the message feedback side of above-mentioned second aspect The step of correspondence in method.

6th aspect, there is provided a kind of message feedback device, the message feedback device is applied in chain of command equipment, including Unit at least one, the unit of the message feedback device is respectively used in the message feedback method for realize the above-mentioned third aspect The step of correspondence.

A kind of 7th aspect, there is provided computer-readable medium, the computer-readable medium storage is used to realize first party The instruction of the message feedback method that face, second aspect and the third aspect are provided.

Brief description of the drawings

Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.

Fig. 1 is the schematic diagram of the broadband access network that one embodiment of the invention is provided；

Fig. 2A is the schematic diagram of the implementation environment that one embodiment of the invention is provided；

Fig. 2 B are the principle schematics of the VRRP that one embodiment of the invention is provided；

Fig. 2 C are the principle schematics of the BFD that one embodiment of the invention is provided；

Fig. 3 is the method flow diagram of the message feedback method that one embodiment of the invention is provided；

Fig. 4 A are the method flow diagrams of the message feedback method that another embodiment of the present invention is provided；

Fig. 4 B are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided；

Fig. 4 C are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided；

Fig. 4 D are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided；

Fig. 5 A are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided；

Fig. 5 B are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided；

Fig. 5 C are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided；

Fig. 5 D are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided；

Fig. 6 is the block diagram of the message feedback device that one embodiment of the invention is provided；

Fig. 7 is the block diagram of the message feedback device that another embodiment of the present invention is provided；

Fig. 8 is the block diagram of the message feedback device that further embodiment of the present invention is provided.

Specific embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is described in further detail.

For the ease of the understanding to various embodiments of the present invention, first with reference to Fig. 2A to the reality involved by various embodiments of the present invention Environment is applied to illustrate.

Fig. 2A is the schematic diagram of the implementation environment that one embodiment of the invention is provided.The implementation environment is a kind of hierarchical network Structure, as shown in Figure 2 A, the internet 150 from user equipment 140 to backbone layer will be by Access Layer 230, convergence-level 240 and core Central layer 250.

Access Layer 230 is that user equipment 140 is licensed the point for accessing internet 150, positioned at the edge of internet 150.Converge Poly layer 240 is the separation between Access Layer 230 and core layer 250, and the treatment of usual data is completed in convergence-level 240.Converge The equipment of poly layer 240 will be connected to core layer 250, and core layer 250 provides the connection of high speed for the equipment of convergence-level 240.

Alternatively, the implementation environment is related to TIC (Telecommunication Infrastructure Cloud, telecommunications Basic cloud) network architecture, and employ the framework that control plane and user plane are separate.The TIC network architectures include TIC Core (Telecommunication Infrastructure Cloud Core, telecommunications infrastructure cloud core node) 210 and TIC Edge (Telecommunication Infrastructure Cloud Edge, telecommunications infrastructure cloud fringe node) 220.In TIC BRAS CP 211 (Control Plane, control plane) are deployed with Core 210, are deployed with TIC Edge 220 BRAS UP 221 (User Plane, user plane).

In the BRAS of prior art, subscriber dialing message up sending, the reception of forwarding-table item, customer flow forwarding, user Access protocol treatment and user management are realized by same equipment, and the TIC network architectures use control forwarding separation scene, BRAS CP 211 are mainly used in realizing the treatment of user's access protocol and user management that BRAS UP 221 are mainly used in realizing user Dialing message up sending, the reception of forwarding-table item and customer flow forwarding.Alternatively, what is be connected with TIC Core 210 also has RADIUS (Remote Authentication Dial In User Service, remote customer dialing authentication service) server 212 and DHCP (Dynamic Host Configuration Protocol, DHCP) server 213, Radius server 212 is used to be authenticated and charging for dial-up user, and Dynamic Host Configuration Protocol server 213 is used for as network service certainly Dynamic distribution IP address.

The TIC network architectures are combined with hierarchical network structure and is seen, TIC Core 210 are corresponding with core layer 250, TIC Edge 220 is corresponding with convergence-level 240, then after releasing, BRAS CP 211 are disposed BRAS CP 211 and BRAS UP 221 In core layer 250, BRAS CP 211 include at least one chain of command equipment 214, and BRAS UP 221 are deployed in convergence-level 240。

Access-layer switch 231 is configured with Access Layer 230, access-layer switch 231 is generally used for connection user and sets Standby 140.Alternatively, OLT (optical line terminal, optical line terminal) 232 is can be configured with Access Layer 230, OLT 232 is used to connect the terminal device of fiber optic backbone, and corresponding with OLT 232, user equipment 140 needs to be configured with ONT (Optical network terminal, ONT Optical Network Terminal) 233, ONT 233 is connected with OLT 232.

Convergence layer switch 241 is configured with convergence-level 240, it is many access-layer switch to converge layer switch 241 231 convergent point.

In convergence-level 240, converge layer switch 241 respectively with first user face equipment 222 and second user face equipment 223 are connected.

There is uplink network equipment 251 in core layer 250, the first user face equipment 222 and second in convergence-level 240 is used Family face equipment 223 is connected to uplink network equipment 251, and uplink network equipment 251 is the transmission equipment in core layer 250, on The row network equipment 251 is finally connected with the internet 150 of backbone layer.

In order to ensure the stability of transmission, first user face equipment 222 and second is generally included in each BRAS UP 221 User plane equipment 223, when first user equipment 222 cannot provide service, second user face equipment 223 will take over first user Face equipment 222 provides service.Optionally, first user face equipment 222 and second user face equipment 223 are router.

For first user face equipment 222 and second user face equipment 223, it is necessary to realize physical equipment and logical device point From.It is implemented as：First user face equipment 222 and second user face equipment 223 are by configuring VRRP virtually for one virtual User plane equipment, what user equipment 140 was perceived is Virtual User face equipment, for first user face equipment 222 and second user Face equipment 223 is not perceived.With reference to Fig. 2 B are referred to, it illustrates the principle schematic of VRRP.Physically, user equipment 140 Be connected with access switch 232, access switch 232 respectively with first user face equipment 222 and the phase of second user face equipment 223 Even, first user face equipment 222 and second user face equipment 223 are connected to internet 150.When the He of first user face equipment 222 After the configuration of second user face equipment 223 VRRP, first user face equipment 222 and second user face equipment 223 are virtually a void Intend user plane equipment 224.Logically, user equipment 140 is connected with access switch 232, access switch 232 and virtually use Family face equipment 224 is connected, and Virtual User face equipment 224 is connected with internet 150.For example, first user face equipment 222 IP address is 10.1.1.2/24, and the IP address of second user face equipment 223 is 10.1.1.1/24, Virtual User face equipment 224 IP address be 10.1.1.10, the IP address of user equipment 140 is 10.1.1.3/24, the gateway that user equipment 140 is pointed to IP address is 10.1.1.10, then user equipment 140 can only perceive Virtual User equipment 224, and can not perceive first user face Equipment 222 and second user face equipment 223.

Be configured with the first user face equipment 222 and second user face equipment 223 of VRRP can be individually configured it is respective VRRP priority.Alternatively, the span of VRRP priority is 0~255, defaults to 100, the He of first user face equipment 222 The VRRP states of a VRRP priority equipment higher are main state in second user face equipment 223, a relatively low equipment VRRP states be stand-by state, when first user face equipment 222 and the height of the VRRP priority of second user face equipment 223 After there occurs change, corresponding VRRP states can also be switched over.

Assuming that the VRRP states of first user face equipment 222 are main state, the VRRP states of second user face equipment 223 are Stand-by state, the first user face equipment 222 that VRRP states are main state periodically sends to second user face equipment 223 VRRP notification packets, the VRRP priority comprising first user face equipment 222 in VRRP notification packets, second user face sets Standby 223 after VRRP notification packets are received, and the 2nd VRRP priority is replied to first user face equipment 222, work as first user When face equipment 222 learns that the 2nd VRRP priority is less than a VRRP priority, the repair and maintenance itself of first user face equipment 222 VRRP states are main state；When the VRRP priority that first user face equipment 222 sends is less than second user face equipment 223 The 2nd VRRP priority when, second user face equipment 223 receiving first user face equipment 222 transmission VRRP notice report Wen Shi, seizes as major state, and replys the 2nd VRRP priority, first user face equipment 222 to first user face equipment 222 When it is higher than a VRRP priority to learn the 2nd VRRP priority, VRRP states are switched into stand-by state by major state. The cycle that VRRP notification packets send is usually 1 second, if second user face equipment 223 is in three weeks time of VRRP notification packets Phase (3 seconds) does not receive the VRRP notification packets of the transmission of first user face equipment 222, then second user face equipment 223 assert the One user plane equipment 222 breaks down, and it is main shape automatically to switch the VRRP states of second user face equipment 223 from stand-by state State.

In initialization, first user face equipment 222 is manual configuration with the VRRP priority of second user face equipment 223 , such as a VRRP priority of first user face equipment 222 is configured to 200, the 2nd VRRP of second user face equipment 223 Priority is configured to 100.In actual applications, when first user face equipment 222 cannot provide service, a VRRP is reduced excellent First level is represented and for a VRRP priority to drop below the 2nd VRRP priority, such as reduce into 50, improves the 2nd VRRP excellent First level is represented and for the 2nd VRRP priority to be increased to greater than a VRRP priority, such as improve into 220.

In order that the failure of first user face equipment 222 can be found as early as possible, the equipment 222 and second in first user face In user plane equipment 223 fault-finding is carried out using BFD technologies.With reference to Fig. 2 C are referred to, it illustrates the principle schematic of BFD. User equipment 140 is connected with access switch 232, access switch 232 respectively with first user face equipment 222 and second user Face equipment 223 is connected, and first user face equipment 222 is connected with the first uplink network equipment 252, second user face equipment 223 with Second uplink network equipment 253 is connected, and the first uplink network equipment 252 and the second uplink network equipment 253 access internet 150.When being configured to BFD, the BFD in first user face equipment 222 is bound with the interface of up-link, i.e., and first The access interface binding of BFD and the first uplink network equipment 252 in user plane equipment 222, sets for detecting first user face The state of standby 222 up-link, up-link refers to the chain between first user face equipment 222 and uplink network equipment 252 Road；BFD in second user face equipment 223 binds with the IP address of first user face equipment 222, due to first user face equipment Access switch 232, therefore the BFD of second user face equipment 223 and are connected between 222 and second user face equipment 223 The IP bindings of one user plane equipment 222, the descending chain for detecting first user face equipment 222 or first user face equipment 222 The state on road, downlink refers to the link between first user face equipment 222 and access switch 232.BFD has configured it Afterwards, opposite end of the BFD detection messages to binding can be periodically sent, opposite end can be replied after receiving detection messages, if BFD is detected Do not responded to the detection messages for being sent to opposite end, then the state of BFD is changed into DOWN, failure is represented, if BFD is detected being sent to The detection messages of opposite end have response, then the state of BFD is changed into UP, represent normal.Such as, first user face equipment 222 is to up The access interface of the network equipment 252 sends detection messages, if not receiving response, then it represents that uplink failure, the state of BFD It is changed into DOWN, and notice is sent to the VRRP in first user face equipment 222；The BFD of second user face equipment 223 is by accessing Interchanger 232 sends detection messages to first user face equipment 222, if not receiving response, then it represents that first user face equipment The downlink failure of 222 failures or first user face equipment 222, the state of BFD is changed into DOWN, and to second user face equipment 223 VRRP sends and notifies.

The cycle that BFD sends detection messages is about 50 milliseconds, waits three cycles (150 milliseconds) not receive response, Then BFD thinks to break down, and is sent to VRRP and notified.By BFD, to detect the time that failure spent shorter, therefore, it is possible to fast Speed finds failure, and informing VRRP carries out troubleshooting.After the time of troubleshooting shortens, user equipment 140 would not be perceived To breaking down.

In addition, BFD also needs to the reconfiguration latency UP times (Delay-up seconds), for being control in fault recovery Face equipment 214 issues the reserved certain hour of user profile, thus postpone the duration of UP times be greater than chain of command equipment 214 to Family face equipment issues the duration of user profile.Issuing for user profile generally needs more than ten seconds, thus BFD postpone the UP times can be with It is set to 20 seconds.Finished when user profile is issued, state is switched to UP by BFD again so that customer flow (or user datagram Text) switching when first user face equipment 222 can be processed immediately, it is to avoid the loss of customer flow.

Fig. 3 is the method flow diagram of the message feedback method that one embodiment of the invention is provided.The message feedback method with Apply in the implementation environment shown in Fig. 2A for example, as shown in figure 3, the message feedback method includes：

301, chain of command equipment sends first when first user face equipment cannot provide service to second user face equipment The corresponding user profile of user plane equipment.

First user face equipment is in upgrading, itself fail, up-link break down or downlink occurs Service cannot be provided during failure.

Because first user face equipment cannot provide service, in order that user equipment can be accessed normally, BRAS UP will lead User plane equipment is substituted for second user face equipment by first user face equipment.

Alternatively, user profile at least unique mark (ID), the access interface of user equipment, interface including user equipment VLAN (Virtual Local Area Network, VLAN), the MAC Address of user equipment and user in equipment The IP address of equipment, wherein, interface equipment refers to the accession to interchanger, and access interface refers to the accession to the interface on interchanger.

In actual applications, after user equipment accesses internet by first user face equipment, deposited in chain of command equipment Whole user profile of the user equipment are contained, the user's letter for being stored with related to customer flow forwarding in the equipment of first user face Breath, is not store the related user profile of the user equipment under original state in the equipment of second user face.Therefore used first Family face equipment cannot provide service, and customer flow is needed to be switched to second user face equipment when being forwarded, and chain of command equipment is needed First user profile is issued in the equipment of second user face, second user face equipment after user profile is received could to Family flow is forwarded.

In actual applications, chain of command equipment may be connected with multigroup user plane equipment, and one group of user plane equipment includes the One user plane equipment and second user face equipment.Because the user plane equipment being connected with chain of command equipment is a lot, therefore chain of command Equipment to second user face equipment when user profile is issued, it is necessary to issue user profile corresponding with first user face equipment. User profile corresponding to first user face equipment refers to that first user face equipment is used to realize the related use of customer flow forwarding Family information.

302, second user face equipment obtains the corresponding user profile of first user face equipment from chain of command equipment.

Chain of command equipment issues the corresponding user profile of first user face equipment, second user face to second user face equipment The user profile that equipment will be received is stored.

303, second user face equipment receives the keep Alive Packet that user equipment sends.

Keep Alive Packet is used to ask user equipment to be in presence.

Alternatively, included in keep Alive Packet：ID, keep-alive information of user equipment etc..

User equipment sets keepalive timer after reaching the standard grade, if the duration of no data interaction reaches keepalive timer regularly Duration, then user equipment send keep Alive Packet, user equipment when the confirmation message for feeding back keep Alive Packet is received, to protect Active timer is reset, if user equipment does not receive confirmation message, user equipment goes offline.

304, second user face equipment is according to user profile to user equipment feedback acknowledgment message.

Second user face equipment is when the keep Alive Packet of user equipment transmission is received, it is necessary to search corresponding with user equipment User profile, determine whether user equipment has reached the standard grade, if user equipment has been reached the standard grade, second user face equipment sets to user Standby feedback acknowledgment message.

Because second user face equipment gets user profile from chain of command equipment, therefore, it is possible to pass through searching user's information To user equipment feedback acknowledgment message.

305, chain of command equipment first user face equipment from cannot provide service recovery to provide service state when, to the One user plane equipment sends the corresponding user profile of second user face equipment.

Alternatively, finished or during affiliated link failure recovery in the device upgrade of first user face, first user face equipment is extensive Multiple is offer service state.

It is a kind of may in the case of, viability, customer flow cannot be provided be logical due to first user face equipment Second user face device forwards are crossed, user profile during this period is not stored in the equipment of first user face, therefore worked as When first user face equipment recovers offer service, chain of command equipment needs to send the corresponding user profile of second user face equipment Give first user face equipment.

In the case of alternatively possible, first user face equipment causes loss of data due to upgrading or failure, when first When user plane equipment reverts to the state of the service of offer, chain of command equipment needs to issue user profile gives first user face equipment.

306, first user face equipment obtains the corresponding user profile of second user face equipment from chain of command equipment.

307, first user face equipment receives the keep Alive Packet that user equipment sends.

308, first user face equipment is according to user profile to user equipment feedback acknowledgment message.

Because chain of command equipment has issued user profile to first user face equipment, therefore first user face equipment being capable of root According to user profile feedback acknowledgment message.

In sum, message feedback method provided in an embodiment of the present invention, cannot provide by first user face equipment During service, second user face equipment obtains the corresponding user profile of first user face equipment from chain of command equipment, is believed according to user Cease to the user equipment feedback acknowledgment message for sending keep Alive Packet, because second user face equipment need not back up in realtime the first use The user plane equipment of the user profile of family face equipment, i.e. stand-by state need not back up in realtime major state user plane equipment use Family information, therefore the problem of the excessive user plane device resource for taking stand-by state will not be produced.

When first user face equipment leads to not offer service due to upgrading, used with second for first user face equipment Switching between the equipment of family face and the feedback to keep Alive Packet refer to the step shown in Fig. 4 A or Fig. 4 B.

When the device upgrade of first user face finishes recovery provides service state, used with second for first user face equipment Switching between the equipment of family face and the feedback to keep Alive Packet refer to the step shown in Fig. 4 C or Fig. 4 D.

When the up-link of first user face equipment breaks down, set with second user face for first user face equipment Switching between standby and the feedback to keep Alive Packet refer to the step shown in Fig. 5 A；When the uplink of first user face equipment During the fault recovery of road, for the switching between first user face equipment and second user face equipment and the feedback to keep Alive Packet Refer to the step shown in Fig. 5 B.

When the downlink or first user face device fails of first user face equipment, set for first user face It is standby to refer to the step shown in Fig. 5 C with the switching between the equipment of second user face and to the feedback of keep Alive Packet；When the first use When the downlink of family face equipment or the equipment fault of first user face recover, set with second user face for first user face equipment Switching between standby and the feedback to keep Alive Packet refer to the step shown in Fig. 5 D.

Fig. 4 A are the method flow diagrams of the message feedback method that another embodiment of the present invention is provided.The message feedback method To apply in the implementation environment shown in Fig. 2A for example, first user face equipment is because upgrading leads to not in the present embodiment Service is provided, as shown in Figure 4 A, the message feedback method includes：

401, chain of command equipment sends first user face and sets in the device upgrade of first user face, to second user face equipment Standby corresponding user profile.

When actually realizing, during upgrading including the scheduled duration before upgrading and upgrading process, scheduled duration at least above Chain of command equipment issues duration needed for user profile to second user face equipment.

Can be prediction because the upgrading of first user face equipment causes first user face equipment to provide service, because This is carried out accurately to the switching of first user face equipment and second user face equipment in advance, and chain of command equipment is in advance by user profile It is issued to first user face equipment so that after handover, it is to avoid because user profile is not issued cause the loss of customer flow.

In actual applications, duration needed for chain of command equipment issues user profile is about more than ten seconds, and scheduled duration can be with It is set to 20 seconds.

402, second user face equipment receives the corresponding user profile of first user face equipment that chain of command equipment is issued.

403a, chain of command equipment sends priority reduction order to first user face equipment.

Control device first issues user profile and retransmits priority reduction instruction so that be switched to the second use in customer flow During the equipment of family face, be stored with user profile in the equipment of second user face such that it is able to which customer flow is forwarded, it is to avoid The loss of customer flow.

In actual applications, to set VRRP manually in configuration preferential for first user face equipment and second user face equipment Level, such as：The VRRP priority of first user face equipment is 200, and the VRRP priority of second user face equipment is 100.VRRP The VRRP states of priority user plane equipment high are main state, and the VRRP states of the low user plane equipment of VRRP priority are standby Use state.

Priority reduction order sets for indicating the VRRP priority of first user face equipment to be reduced to than second user face Standby VRRP priority is low, such as：The VRRP priority of first user face equipment is reduced to 80.

404a, first user face equipment receives the priority reduction order that chain of command equipment sends.

405a, first user face equipment is preferential according to the VRRP that priority reduction order reduces first user face equipment Level.

In actual applications, the VRRP priority after the reduction of first user face equipment will be less than second user face equipment The 2nd VRRP priority.

406a, first user face equipment sends a VRRP priority to second user face equipment.

Due to the VRRP priority of the VRRP priority higher than second user face equipment of first user face equipment initial configuration, Therefore the VRRP states of first user face equipment are main state, and possess the ability for sending VRRP notification packets.First user face sets The standby VRRP notification packets for periodically sending include the priority of a VRRP.

407a, second user face equipment receives the VRRP priority that first user face equipment sends.

408a, second user face equipment is in twoth VRRP priority of the VRRP priority less than second user face equipment When, the VRRP states of second user face equipment are main state from stand-by state switching.

Due to VRRP priority reduction, when the 2nd VRRP priority is higher than a VRRP priority, second user The VRRP states switching of face equipment is main state.

409a, second user face equipment sends the 2nd VRRP priority to first user face equipment.

Second user face equipment after the VRRP notification packets that first user face equipment sends are received, to first user face The VRRP priority of device replied the 2nd.

410a, first user face equipment receives the 2nd VRRP priority that second user face equipment sends.

411a, first user face equipment a VRRP priority be less than the 2nd VRRP priority when, by first user face The VRRP states of equipment switch to stand-by state from major state.

The first user face equipment that script VRRP states are main state is receiving second user face equipment is returned second After VRRP priority, a VRRP priority is determined less than the 2nd VRRP priority, so as to VRRP states be cut from major state It is changed to stand-by state.

Interchangeable, step 403a to step 411a can be substituted for the step 403b to step 411b shown in Fig. 4 B.

403b, chain of command equipment sends priority and improves order to second user face equipment.

Priority improves order and is set than first user face for indicating the VRRP priority of second user face equipment to bring up to Standby VRRP priority is high, such as：The VRRP priority of second user face equipment brings up to 220.

404b, second user face equipment receives the priority raising order that chain of command equipment sends.

405b, second user face equipment is preferential according to the 2nd VRRP that priority improves order raising second user face equipment Level.

2nd VRRP priority of second user face equipment is improved and dropped with a VRRP priority of first user face equipment Low purpose is identical, is provided to make a VRRP priority be less than the 2nd VRRP priority.

406b, first user face equipment is preferential to the VRRP that second user face equipment sends first user face equipment Level.

407b, second user face equipment receives the VRRP priority that first user face equipment sends.

408b, second user face equipment is in twoth VRRP priority of the VRRP priority less than second user face equipment When, the VRRP states of second user face equipment are main state from stand-by state switching.

Because the 2nd VRRP priority of second user face equipment is improved, when the 2nd VRRP priority is excellent higher than a VRRP During first level, the VRRP states switching of second user face equipment is main state.

409b, second user face equipment sends the 2nd VRRP priority to first user face equipment.

410b, first user face equipment receives the 2nd VRRP priority that second user face equipment sends.

411b, first user face equipment a VRRP priority be less than the 2nd VRRP priority when, by first user face The VRRP states of equipment switch to stand-by state from major state.

412, second user face equipment receives the keep Alive Packet that user equipment sends.

413, second user face equipment is according to user profile to user equipment feedback acknowledgment message.

Second user face equipment, can be according to user profile to protecting after it have received the user profile that chain of command equipment is issued Message living is responded, feedback acknowledgment message.

Fig. 4 C are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided.The message feedback method To apply in the implementation environment shown in Fig. 2A for example, first user face equipment is because upgrading finishes recovery in the present embodiment Service state is provided, as shown in Figure 4 C, the message feedback method includes：

414, chain of command equipment sends second user when the device upgrade of first user face is finished to first user face equipment The corresponding user profile of face equipment.

After the device upgrade of first user face is finished, first user face equipment can continue to offer service.

Due to during the device upgrade of first user face, customer flow be by second user face device forwards, therefore May cause user due to upgrading without the corresponding user profile of storage, or first user face equipment in the equipment of first user face Information data is all lost, therefore chain of command equipment needs to issue the corresponding user's letter in second user face to first user face equipment Breath.

415, first user face equipment receives the user profile that chain of command equipment sends.

416a, chain of command equipment sends priority and improves order to first user face equipment.

Chain of command equipment first issues user profile, then issues priority and improve order and indicate VRRP states to switch over, and makes Obtain when customer flow switches back into first user face equipment, will not issued due to user profile, cause the loss of customer flow.

When actually realizing, the user plane equipment being typically main state by VRRP states realizes real forwarding capability, Therefore when first user face equipment recovers to provide service state, based on the VRRP states of first user face equipment need first to switch State, the VRRP states switching of first user face equipment is main state and needs a VRRP priority preferential more than the 2nd VRRP Level, therefore chain of command equipment sends priority raising order the first VRRP priority of raising to first user face equipment.

417a, first user face equipment receives the priority raising order that chain of command equipment sends.

418a, first user face equipment is preferential according to the VRRP that priority improves order raising first user face equipment Level.

419a, second user face equipment sends the 2nd VRRP priority to first user face equipment.

During the device upgrade of first user face, the VRRP states of second user face equipment are main state, therefore second uses Family face equipment sends VRRP notification packets to first user face equipment, and the 2nd VRRP priority is carried in VRRP notification packets.

420a, first user face equipment receives the 2nd VRRP priority that second user face equipment sends.

421a, first user face equipment is in twoth VRRP priority of the VRRP priority higher than second user face equipment When, the VRRP priority of first user face equipment is main state from stand-by state switching.

422a, first user face equipment sends a VRRP priority to second user face equipment.

423a, second user face equipment receives the VRRP priority that first user face equipment sends.

424a, second user face equipment a VRRP priority be higher than the 2nd VRRP priority when, by second user face The VRRP states of equipment switch to stand-by state from major state.

Interchangeable, step 416a to step 424a can be substituted for the step 416b to step 424b shown in Fig. 4 D.

416b, chain of command equipment sends priority reduction order to second user face equipment.

The 2nd VRRP priority for reducing second user face equipment is preferential with the VRRP for improving first user face equipment The purpose of level is the same, is provided to make the 2nd VRRP priority less than a VRRP priority, so that first user The VRRP states switching of face equipment is main state.

417b, second user face equipment receives the priority reduction order that chain of command equipment sends.

418b, second user face equipment reduces the 2nd VRRP priority according to priority reduction order.

419b, second user face equipment sends the 2nd VRRP priority to first user face equipment.

420b, first user face equipment receives the 2nd VRRP priority that second user face equipment sends.

421b, first user face equipment the 2nd VRRP priority be less than a VRRP priority when, by first user face The VRRP states of equipment are main state from stand-by state switching.

422b, first user face equipment sends a VRRP priority to second user face equipment.

423b, second user face equipment receives the VRRP priority that first user face equipment sends.

424b, second user face equipment the 2nd VRRP priority be less than a VRRP priority when, by second user face The VRRP states of equipment switch to stand-by state from major state.

425, first user face equipment receives the keep Alive Packet that user equipment sends.

First user face equipment is after the switching of VRRP states is main state, there is provided the service of customer flow forwarding, therefore the One user plane equipment can receive the keep Alive Packet of user equipment transmission.

426, first user face equipment is according to user profile to user equipment feedback acknowledgment message.

Because first user face equipment receives the user profile that issues of chain of command equipment, therefore first user face equipment can be with According to user profile to user equipment feedback acknowledgment message.

In sum, message feedback method provided in an embodiment of the present invention, due to first user face equipment upgrading when without Method provides service, therefore first user face equipment, in upgrading, second user face equipment receives first that chain of command equipment is issued The corresponding user profile of user plane equipment, sets so as to take over first user face during the device upgrade of first user face The standby forwarding work for carrying out customer flow.Because second user face equipment is the scheduled duration before the device upgrade of first user face The user profile that chain of command equipment is issued just is received, and scheduled duration issues the duration of user profile more than chain of command equipment, Therefore during the device upgrade of first user face, user profile has been stored in the equipment of second user face, can be to user The message that equipment sends is responded, so that user equipment will not go offline in active-standby switch.

Fig. 5 A are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided.The message feedback method To apply in the implementation environment shown in Fig. 2A for example, first user face equipment is due to uplink failure in the present embodiment Lead to not offer service, as shown in Figure 5A, the message feedback method includes：

501, first user face equipment is being detected after up-link breaks down by BFD, is reduced first user face and is set A standby VRRP priority.

Because the BFD of first user face equipment binds with uplink interface, when first user face, equipment is sent by BFD When detection messages do not meet with a response, show that up-link breaks down.Upon failure detection, the state of BFD is changed into BFD DOWN, BFD and VRRP are communicated, and VRRP learns uplink failure, by voluntarily reducing a VRRP priority so that used Family flow switch is to second user face equipment.

In actual applications, by BFD fault detects, customer flow can be switched to second user face equipment quickly, Purpose be make user's device-aware less than.

502, first user face equipment sends a VRRP priority to second user face equipment.

503, second user face equipment receives the VRRP priority that first user face equipment sends.

504, second user face equipment is in twoth VRRP priority of the VRRP priority less than second user face equipment When, the VRRP states of second user face equipment are main state from stand-by state switching.

Due to the uplink failure of first user face equipment, first user face equipment cannot continue offer service, therefore Need to be main state the VRRP states switching of second user face equipment, first user face equipment is taken over by second user face equipment Service is provided.

505, second user face equipment sends the 2nd VRRP priority to first user face equipment.

506, first user face equipment receives the 2nd VRRP priority that second user face equipment sends.

507, first user face equipment sets first user face when a VRRP priority is less than the 2nd VRRP priority Standby VRRP states switch to stand-by state from major state.

508, second user face equipment sends VRRP state switching notices to chain of command equipment.

509, chain of command equipment receives the VRRP state switching notices that second user face equipment sends.

510, chain of command equipment issues the corresponding user profile of first user face equipment to second user face equipment.

511, second user face equipment receives the corresponding user profile of first user face equipment that chain of command equipment is issued.

512, second user face equipment receives the keep Alive Packet that user equipment sends.

513, believe with the presence or absence of user corresponding with keep Alive Packet in the equipment of second user face equipment query second user face Breath.

The time of more than ten seconds is needed because chain of command equipment issues user profile, and chain of command equipment issues user profile It is possible to issue several times, and when BFD detects failure, second user face equipment is switched to by only needing to more than 100 milliseconds User profile may not be also received in major state, therefore second user face equipment or whole user profile are not received also.

514, when in the equipment of second user face exist user profile corresponding with keep Alive Packet when, second user face equipment to User equipment feedback acknowledgment message.

If just having been received by user profile corresponding with keep Alive Packet, second user face in the equipment of second user face Equipment can be according to user profile to the user equipment feedback acknowledgment message for sending keep Alive Packet.

515, when not existing user profile corresponding with keep Alive Packet in the equipment of second user face, second user face equipment Keep Alive Packet is sent to chain of command equipment.

If not existing user profile corresponding with keep Alive Packet in the equipment of second user face, second user face equipment cannot Keep Alive Packet is responded, if second user face equipment abandons keep Alive Packet, corresponding user equipment can then go offline.

And whole user profile are stored in chain of command equipment, in order that user equipment does not go offline, second user face sets It is standby that keep Alive Packet is reported into chain of command equipment, keep Alive Packet is responded according to user profile by chain of command equipment, so that So that user equipment will not go offline when up-link breaks down.

516, chain of command equipment receives the keep Alive Packet that second user face equipment sends.

517, chain of command equipment is according to the user profile for storing to user equipment feedback acknowledgment message.

Fig. 5 B are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided.The message feedback method To apply in the implementation environment shown in Fig. 2A for example, first user face equipment is due to uplink failure in the present embodiment Recovery can normally provide service, and as shown in Figure 5 B, the message feedback method includes：

518, first user face equipment detected by BFD first user face equipment uplink failure recover when, First state change information is sent to chain of command equipment.

When first user face equipment sends detection messages by BFD to uplink interface to be obtained responding, show up Link failure recovery.

In actual applications, when BFD detects fault recovery, the state of BFD can at once switch to UP, represent normal, BFD is communicated with VRRP, and also can be main state for the switching of the VRRP states of first user face equipment quickly by VRRP, but due to control Face equipment processed issues user profile needs certain time length, if the VRRP states of first user face equipment are switched fast being main state, But user profile is not received also in the equipment of first user face, then the loss of certain customers' flow, therefore BFD can be caused to be configured with Postpone the UP times, postponing the duration of UP times needs to issue the duration of user profile more than chain of command equipment so that in user's letter Before breath is not all issued and finished, the VRRP states of first user face equipment can not switch to major state, it is to avoid user's stream The loss of amount.

519, chain of command equipment receives the first state change information that first user face equipment sends.

When first user face equipment detects uplink failure by BFD to be recovered, first user face equipment is by the One state change information inform chain of command equipment will first user face equipment carry out VRRP state switchings so that chain of command equipment User profile can be issued in the equipment of first user face in time.

Including at least the IP address of first user face equipment in first state change information, chain of command equipment passes through the first shape State change information searches corresponding user profile.

520, chain of command equipment sends the corresponding user profile of second user face equipment to first user face equipment.

User profile is handed down to first by chain of command equipment after the user profile that first user face equipment needs is found User plane equipment.

521, first user face equipment receives the second user face that chain of command equipment is issued according to first state change information The corresponding user profile of equipment.

522, after user profile is issued and finished, chain of command equipment sends the first switching notice to first user face equipment, First switching notice is used to improve a VRRP priority of first user face equipment.

Chain of command equipment sends the first switching notice after user profile is issued and finished to first user face equipment, passes through First switching notice improves a VRRP priority, so that the VRRP states switching of first user face equipment is main state.

In actual applications, the time of the first switching notice of chain of command equipment transmission will be earlier than the BFD delay UP times.Due to The BFD delay UP times will be longer than chain of command equipment and issue user profile and send the time of the first switching notice, therefore VRRP shapes The time of the first switching notice that the switching of state receives the transmission of chain of command equipment by first user face equipment is defined.

523, first user face equipment receives the first switching notice that chain of command equipment sends.

524, first user face equipment improves a VRRP priority of first user face equipment according to the first switching notice.

525, second user face equipment sends the 2nd VRRP priority to first user face equipment.

526, first user face equipment receives the 2nd VRRP priority that second user face equipment sends.

527, first user face equipment sets first user face when a VRRP priority is higher than the 2nd VRRP priority Standby VRRP states are main state from stand-by state switching.

528, first user face equipment sends a VRRP priority to second user face equipment.

529, second user face equipment receives the VRRP priority that first user face equipment sends.

530, second user face equipment sets second user face when a VRRP priority is higher than the 2nd VRRP priority Standby VRRP states switch to stand-by state from major state.

531, first user face equipment receives the keep Alive Packet that user equipment sends.

532, first user face equipment is according to user profile to user equipment feedback acknowledgment message.

Fig. 5 C are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided.The message feedback method To apply in the implementation environment shown in Fig. 2A for example, first user face equipment is due to downlink failure in the present embodiment Or because the equipment fault of first user face leads to not offer service, as shown in Figure 5 C, the message feedback method includes：

533, second user face equipment detects the descending chain of first user face equipment or first user face equipment by BFD When road is broken down, the 2nd VRRP priority of second user face equipment is improved.

The BFD of second user face equipment binds with the IP address of first user face equipment, if second user face equipment passes through BFD sends detection detection messages and is not responded, then show the descending chain of first user face equipment or first user face equipment Road failure.The BFD states of second user face equipment are changed into DOWN, and are communicated with VRRP, inform that VRRP carries out state switching.

Second user face equipment is by voluntarily improving the 2nd VRRP priority so that the 2nd VRRP priority is higher than first VRRP priority, so that the VRRP states switching of second user face equipment is main state.

534, second user face equipment sends the 2nd VRRP priority to first user face equipment.

535, first user face equipment receives the 2nd VRRP priority that second user face equipment sends.

536, first user face equipment sets first user face when the 2nd VRRP priority is higher than a VRRP priority Standby VRRP states switch to stand-by state from major state.

When the downlink failure of first user face equipment causes between first user face equipment and second user face equipment When cannot be communicated by VRRP notification packets, step 534 to step 536 can not be performed, and step 537 directly be performed, by second The VRRP states of user plane equipment are main state from stand-by state switching.

537, second user face equipment sets second user face when a VRRP priority is less than the 2nd VRRP priority Standby VRRP states are main state from stand-by state switching.

Alternatively, when the 2nd VRRP priority of second user face equipment is improved, the VRRP shapes of second user face equipment State is main state from stand-by state switching.

Alternatively, when second user face equipment receives a VRRP priority, and a VRRP priority is less than second During VRRP priority, the VRRP states of second user face equipment are main state from stand-by state switching.

Alternatively, when second user face equipment does not receive first user face in 3 message cycles of VRRP notification packets During the VRRP notification packets that equipment sends, the VRRP states of second user face equipment are main state from stand-by state switching.

538, second user face equipment sends VRRP state switching notices to chain of command equipment.

539, chain of command equipment receives the VRRP state switching notices that second user face equipment sends.

540, chain of command equipment issues the corresponding user profile of first user face equipment to second user face equipment.

541, second user face equipment receives the corresponding user profile of first user face equipment that chain of command equipment is issued.

542, second user face equipment receives the keep Alive Packet that user equipment sends.

543, believe with the presence or absence of user corresponding with keep Alive Packet in the equipment of second user face equipment query second user face Breath.

544, when in the equipment of second user face exist user profile corresponding with keep Alive Packet when, second user face equipment to User equipment feedback acknowledgment message.

545, when not existing user profile corresponding with keep Alive Packet in the equipment of second user face, second user face equipment Keep Alive Packet is sent to chain of command equipment.

And whole user profile are stored in chain of command equipment, in order that user equipment does not go offline, second user face sets It is standby that keep Alive Packet is reported into chain of command equipment, keep Alive Packet is responded according to user profile by chain of command equipment, so that So that user equipment will not go offline in downlink or first user face device fails.

546, chain of command equipment receives the keep Alive Packet that second user face equipment sends.

547, chain of command equipment is according to the user profile for storing to user equipment feedback acknowledgment message.

Fig. 5 D are the method flow diagrams of the message feedback method that further embodiment of the present invention is provided.The message feedback method To apply in the implementation environment shown in Fig. 2A for example, first user face equipment is due to downlink failure in the present embodiment Recover or the equipment fault of first user face recovers normally provide service, as shown in Figure 5 D, the message feedback method includes：

548, second user face equipment detects the descending chain of first user face equipment or first user face equipment by BFD During the fault recovery of road, the second state change information is sent to chain of command equipment.

When second user face equipment sends detection messages by BFD to first user face equipment to be obtained responding, show the The downlink failure of one user plane equipment or first user face equipment is recovered.

549, chain of command equipment receives the second state change information that second user face equipment sends.

When second user face equipment detects downlink or first user face equipment fault recovery by BFD, second User plane equipment informs that chain of command equipment first user face equipment will carry out VRRP states and cut by the second state change information Change so that can be issued to user profile in the equipment of first user face in time by chain of command equipment.

Including at least the IP address of first user face equipment in second state change information, chain of command equipment passes through the first shape State change information searches corresponding user profile.

550, the corresponding user profile of second user face equipment that chain of command equipment sends to first user face equipment.

551, first user face equipment receives the second user face that chain of command equipment is issued according to the second state change information The corresponding user profile of equipment.

552, after user profile is issued and finished, chain of command equipment sends the second switching notice to second user face equipment, Second switching notice is used to reduce the 2nd VRRP priority of second user face equipment.

Chain of command equipment sends the second switching notice after user profile is issued and finished to second user face equipment, passes through Second switching notice the 2nd VRRP priority of reduction, so that the VRRP states of second user face equipment switch to stand-by state.

In actual applications, the time of the second switching notice of chain of command equipment transmission will be earlier than the BFD delay UP times.Due to The BFD delay UP times will be longer than chain of command equipment and issue user profile and send the time of the second switching notice, therefore VRRP shapes The time of the second switching notice that the switching of state receives the transmission of chain of command equipment by second user face equipment is defined.

553, second user face equipment receives the second switching notice that chain of command equipment sends.

554, second user face equipment reduces the 2nd VRRP priority of second user face equipment according to the second switching notice.

555, second user face equipment sends the 2nd VRRP priority to first user face equipment.

556, first user face equipment receives the 2nd VRRP priority that second user face equipment sends.

557, first user face equipment sets first user face when a VRRP priority is higher than the 2nd VRRP priority Standby VRRP states are main state from stand-by state switching.

558, first user face equipment sends a VRRP priority to second user face equipment.

559, second user face equipment receives the VRRP priority that first user face equipment sends.

560, second user face equipment sets second user face when a VRRP priority is higher than the 2nd VRRP priority Standby VRRP states switch to stand-by state from major state.

561, first user face equipment receives the keep Alive Packet that user equipment sends.

562, first user face equipment is according to user profile to user equipment feedback acknowledgment message.

In sum, message feedback method provided in an embodiment of the present invention, due to the link where the equipment of first user face When breaking down, the VRRP states of second user face equipment are main state from stand-by state switching, and are sent to chain of command equipment State switching notice request issue user profile so that due to failure first user face equipment cannot provide service when, second User plane equipment can continue to offer service, realize the forwarding to customer flow.

Following is apparatus of the present invention embodiment, can be used for performing the inventive method embodiment.For apparatus of the present invention reality The details not disclosed in example is applied, the inventive method embodiment is refer to.

Fig. 6 is the block diagram of the message feedback device that one embodiment of the invention is provided.The message feedback device should In the second user face equipment 223 shown in Fig. 2A, the message feedback device can be by the knot of software, hardware or both Conjunction is implemented as some or all of of second user face equipment 223.As shown in fig. 6, the message feedback device 600 includes：Obtain Take unit 610, receiving unit 620 and feedback unit 630.

Acquiring unit 610, for realizing above-mentioned steps 302, step 402, step 508, step 511, step 538, step 541 and other any implicit or disclosed functions related to acquisition.

Receiving unit 620, for realize above-mentioned steps 303, step 407a, step 408a, step 409a, step 404b, Step 405b, step 407b, step 408b, step 409b, step 412, step 419a, step 423a, step 424a, step 417b, step 418b, step 419b, step 423b, step 424b, step 503, step 504, step 505, step 512, step 525th, step 529, step 530, step 533, step 534, step 537, step 542, step 548, step 553, step 554, Step 555, step 559, step 560 and other any implicit or disclosed functions related to reception.

Feedback unit 630, for realizing above-mentioned steps 304, step 413, step 513, step 514, step 515, step 543rd, step 544, step 545 and other any implicit or disclosed functions related to feedback.

Fig. 7 is the block diagram of the message feedback device that another embodiment of the present invention is provided.The message feedback device Apply in the first user face equipment 222 shown in Fig. 2A, the message feedback device can be by software, hardware or both It is implemented in combination with turning into some or all of of first user face equipment 222.As shown in fig. 7, the message feedback device 700 includes： Acquiring unit 710, receiving unit 720 and feedback unit 730.

Acquiring unit 710, for realizing above-mentioned steps 306, step 415, step 521, step 551 and other are any hidden Containing or the disclosed function related to acquisition.

Receiving unit 720, for realize above-mentioned steps 307, step 404a, step 405a, step 406a, step 410a, Step 411a, step 406b, step 410b, step 411b, step 417a, step 418a, step 420a, step 421a, step 422a, step 420b, step 421b, step 422b, step 425, step 501, step 502, step 506, step 507, step 518th, step 523, step 524, step 526, step 527, step 528, step 531, step 535, step 536, step 556, Step 557, step 558, step 561 and other any implicit or disclosed functions related to reception.

Feedback unit 730, for realizing above-mentioned steps 308, step 426, step 532, step 562 and other are any hidden Containing or the disclosed function related to feedback.

Fig. 8 is the block diagram of the message feedback device that further embodiment of the present invention is provided.The message feedback device Apply in the chain of command equipment 214 shown in Fig. 2A, the message feedback device can be by the combination of software, hardware or both It is implemented as some or all of of chain of command equipment 214.As shown in figure 8, the message feedback device 800 includes：First sends The transmitting element 820 of unit 810 and second.

First transmitting element 810, for realizing above-mentioned steps 301, step 401, step 403a, step 403b, step 509th, step 510, step 516, step 517, step 539, step 540, step 546, step 547 and other it is any implicit or The disclosed function related to transmission.

Second transmitting element 820, for realizing above-mentioned steps 305, step 414, step 416a, step 416b, step 519th, step 520, step 522, step 549, step 550, step 552 and other are any implicit or disclosed related to transmission Function.

It should be noted that：Above-described embodiment provide message feedback device feed back message when, only with above-mentioned each function The division of module is carried out for example, in practical application, as needed can distribute by different function moulds above-mentioned functions Block is completed, will the internal structure of equipment be divided into different functional modules, to complete all or part of work(described above Energy.In addition, the message feedback device that above-described embodiment is provided belongs to same design with the embodiment of the method for message feedback method, its The process of implementing refers to embodiment of the method, repeats no more here.

It should be appreciated that it is used in the present context, unless context clearly supports exception, singulative " It is individual " (" a ", " an ", " the ") be intended to also include plural form.It is to be further understood that "and/or" used herein is Finger includes any of or more than one project listed in association and is possible to combine.

The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.

One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can be by hardware To complete, it is also possible to instruct the hardware of correlation to complete by program, described program can be stored in a kind of computer-readable In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..

The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims

1. a kind of message feedback method, it is characterised in that in for second user face equipment, methods described includes：

When equipment cannot provide service in first user face, the corresponding use of first user face equipment is obtained from chain of command equipment Family information；

The keep Alive Packet that user equipment sends is received, the keep Alive Packet is used to ask the user equipment to be in presence；

According to the user profile to the user equipment feedback acknowledgment message.

2. method according to claim 1, it is characterised in that described when first user face equipment cannot provide service, The corresponding user profile of first user face equipment is obtained from chain of command equipment, including：

In the first user face device upgrade, the first user face equipment correspondence that the chain of command equipment is issued is received User profile.

3. method according to claim 2, it is characterised in that described when first user face equipment cannot provide service, After obtaining the corresponding user profile of first user face equipment from chain of command equipment, also include：

Receive the priority raising order that the chain of command equipment sends；Order is improved according to the priority and improves described second 2nd VRRP priority of user plane equipment；In the 2nd VRRP priority higher than the first of first user face equipment During VRRP priority, the VRRP states of second user face equipment are main state from stand-by state switching；

Or,

The VRRP priority that first user face equipment sends is received, a VRRP priority is first use What family face equipment was reduced after the priority reduction order for receiving the chain of command equipment；The equipment in the second user face When 2nd VRRP priority is higher than a VRRP priority, by the VRRP states of second user face equipment from standby shape State switching is main state.

4. method according to claim 3, it is characterised in that the VRRP states by second user face equipment from After stand-by state switching is main state, also include：

The priority reduction order that the chain of command equipment sends is received, the priority reduction order is the chain of command equipment Sent after first user face device upgrade is finished；2nd VRRP is reduced according to priority reduction order excellent First level；When the 2nd VRRP priority is less than a VRRP priority, by the VRRP of second user face equipment State switches to the stand-by state from the major state；

Or,

Receive the VRRP priority that first user face equipment sends, a VRRP priority is described the What one user plane equipment was improved after the priority for receiving the chain of command equipment improves order, the priority improves order It is that the chain of command equipment sends after first user face device upgrade is finished；It is higher than in a VRRP priority During the 2nd VRRP priority, the VRRP states of second user face equipment are switched to from the major state described standby State.

5. method according to claim 1, it is characterised in that described when first user face equipment cannot provide service, The corresponding user profile of first user face equipment is obtained from chain of command equipment, including：

Cause a VRRP priority of first user face equipment less than the second of second user face equipment in failure During VRRP priority, the VRRP states of second user face equipment are main state from stand-by state switching；

VRRP state switching notices are sent to the chain of command equipment；

The corresponding user profile of first user face equipment that the chain of command equipment is issued is received, the user profile is institute State chain of command equipment and receive what is sent after the VRRP states switching notice.

6. method according to claim 5, it is characterised in that described to cause the of first user face equipment in failure When one VRRP priority is less than the 2nd VRRP priority of second user face equipment, by second user face equipment Before VRRP states are main state from stand-by state switching, also include：

The VRRP priority that first user face equipment sends is received, a VRRP priority is first use Family face equipment detects what is reduced when up-link breaks down by BFD；

Or,

Broken down in the downlink that first user face equipment or first user face equipment are detected by BFD When, improve the 2nd VRRP priority.

7. method according to claim 1, it is characterised in that described anti-to the user equipment according to the user profile Feedback confirmation message, including：

Inquire about and whether there is user profile corresponding with the keep Alive Packet in the equipment of the second user face；

When there is user profile corresponding with the keep Alive Packet, the confirmation message is fed back to the user equipment；

When in the absence of user profile corresponding with the keep Alive Packet, the keep Alive Packet is sent to the chain of command equipment, The chain of command equipment is used to respond the keep Alive Packet.

8. method according to claim 5, it is characterised in that the VRRP states by second user face equipment from After stand-by state switching is main state, also include：

Receive the VRRP priority that first user face equipment sends, a VRRP priority is described the What one user plane equipment was improved when the first switching notice that the chain of command equipment sends is received, first switching notice It is that the chain of command equipment issues hair after user profile is finished according to first state change information to first user face equipment Send, the first state change information is that first user face equipment detects first user face equipment by BFD Uplink failure recover when to the chain of command equipment send；It is higher than described second in a VRRP priority During VRRP priority, the VRRP states of second user face equipment are switched into stand-by state from major state；

Or,

Recover in the downlink failure that first user face equipment or first user face equipment are detected by BFD When, the second state change information is sent to the chain of command equipment, according to the second switching notice that the chain of command equipment sends The 2nd VRRP priority is reduced, second state change information is used to trigger the chain of command equipment to the described first use Family face equipment issues the user profile, and second switching notice is the chain of command equipment according to second state change Information issues what is sent after the user profile is finished to first user face equipment；It is less than in the 2nd VRRP priority During the first VRRP priority, the VRRP states of second user face equipment are switched into stand-by state from major state.

9. method according to claim 8, it is characterised in that the state of the BFD represents failure when being DOWN, described The state of BFD represents normal when being UP；

The BFD is configured with the delay UP times, and the duration of the delay UP times is more than the chain of command equipment to described first User plane equipment issues the duration of the user profile.

10. a kind of message feedback method, it is characterised in that in for first user face equipment, methods described includes：

First user face equipment from cannot provide service recovery to provide service state when, obtain the from chain of command equipment The corresponding user profile of two user plane equipment；

11. methods according to claim 10, it is characterised in that it is described in first user face equipment from cannot provide Service recovery obtains the corresponding user profile of second user face equipment to provide during service state from chain of command equipment, including：

After first user face device upgrade is finished, the user profile that the chain of command equipment sends is received；

Described is when providing service state, to be obtained from chain of command equipment from that cannot provide service recovery in first user face equipment Take after the corresponding user profile of second user face equipment, also include：

The priority raising order that the chain of command equipment sends is received, it is the chain of command equipment that the priority improves order Sent after first user face device upgrade is finished；Order is improved according to the priority and improves the first user face First VRRP priority of equipment；It is preferential higher than the 2nd VRRP of second user face equipment in a VRRP priority During level, the VRRP states of first user face equipment are main state from stand-by state switching；

Or,

The 2nd VRRP priority that second user face equipment sends is received, the 2nd VRRP priority is second use What family face equipment was reduced after the priority reduction order for receiving the chain of command equipment, the priority reduction order is institute State what chain of command equipment sent after first user face device upgrade is finished；In the 2nd VRRP priority less than described During the first VRRP priority, the VRRP states of first user face equipment are main state from stand-by state switching.

12. methods according to claim 11, it is characterised in that it is described in first user face equipment from cannot provide Service recovery before obtaining the corresponding user profile of second user face equipment from chain of command equipment, is gone back to provide during service state Including：

The priority reduction order that the chain of command equipment sends is received, the priority reduction order is the chain of command equipment Sent in the first user face device upgrade；First user face equipment is reduced according to priority reduction order A VRRP priority；In twoth VRRP priority of the VRRP priority less than second user face equipment When, the VRRP states of first user face equipment are switched into the stand-by state from the major state；

Or,

The 2nd VRRP priority that second user face equipment sends is received, the 2nd VRRP priority is second use What family face equipment was improved after the priority for receiving the chain of command equipment improves order, it is institute that the priority improves order State what chain of command equipment sent in the first user face device upgrade；In the first user face, the first VRRP of equipment is excellent When first level is less than the 2nd VRRP priority, the VRRP states of first user face equipment are switched to from the major state The stand-by state.

13. methods according to claim 10, it is characterised in that it is described in first user face equipment from cannot provide Service recovery obtains the corresponding user profile of second user face equipment to provide during service state from chain of command equipment, including：

When the uplink failure that first user face equipment is detected by BFD is recovered, sent out to the chain of command equipment Send first state change information；Receive the user profile that the chain of command equipment is issued according to the first state change information； After the user profile is issued and finished, the first switching notice that the chain of command equipment sends is received；Cut according to described first Change the VRRP priority for notifying to improve first user face equipment；It is higher than described second in a VRRP priority During the 2nd VRRP priority of user plane equipment, by the VRRP states of first user face equipment from stand-by state switching based on State；

Or,

Receive the 2nd VRRP priority that second user face equipment sends, the 2nd VRRP priority is described the What two user plane equipment were reduced when the second switching notice that the chain of command equipment sends is received, second switching notice It is that the chain of command equipment issues the user profile and finishes according to the second state change information to first user face equipment Send afterwards, second state change information is that second user face equipment detects the first user face by BFD Sent to the chain of command equipment when downlink failure of equipment or first user face equipment is recovered；Described second When VRRP priority is less than a VRRP priority of first user face equipment, by the VRRP of first user face equipment State is main state from stand-by state switching.

14. methods according to claim 10, it is characterised in that it is described in first user face equipment from cannot provide Service recovery before obtaining the corresponding user profile of second user face equipment from chain of command equipment, is gone back to provide during service state Including：

Detected by BFD after up-link breaks down, reducing a VRRP priority of first user face equipment； When in the first user face, the first VRRP priority of equipment is less than the 2nd VRRP priority of second user face equipment, The VRRP states of first user face equipment are switched into stand-by state from major state；

Or,

The 2nd VRRP priority that second user face equipment sends is received, the 2nd VRRP priority is second use Family face equipment is broken down by the downlink that BFD detects first user face equipment or first user face equipment Shi Tigao's；In a VRRP priority of the 2nd VRRP priority higher than first user face equipment, will be described The VRRP states of first user equipment switch to stand-by state from major state.

15. methods according to claim 13, it is characterised in that the state of the BFD represents failure when being DOWN, described The state of BFD represents normal when being UP；

The BFD is configured with the delay UP times, and the delay duration of the delay UP times is more than the chain of command equipment to described First user face equipment issues the duration of the user profile.

16. a kind of message feedback methods, it is characterised in that in for chain of command equipment, methods described includes：

When equipment cannot provide service in first user face, first user face equipment correspondence is sent to second user face equipment User profile, second user face equipment be used for receive user equipment transmission keep Alive Packet, according to the user profile To the user equipment feedback acknowledgment message；

First user face equipment from cannot provide service recovery for offer service when, to first user face equipment send institute The corresponding user profile of second user face equipment is stated, first user face equipment is used to receive the keep-alive report of user equipment transmission Text, according to the user profile to the user equipment feedback acknowledgment message.

17. methods according to claim 16, it is characterised in that described to provide service in first user face equipment When, the corresponding user profile of first user face equipment is sent to second user face equipment, including：

In the first user face device upgrade, first user face equipment correspondence is sent to second user face equipment User profile；

It is described when first user face equipment cannot provide service, to second user face equipment send first user face equipment After corresponding user profile, also include：

Send priority reduction order to first user face equipment, first user face equipment be used for receive it is described A VRRP priority of first user face equipment is reduced after priority reduction order, it is low in a VRRP priority When the 2nd VRRP priority of second user face equipment, by the VRRP states of first user face equipment from major state Switch to stand-by state；

Or,

Send priority to second user face equipment and improve order, second user face equipment be used for receive it is described Priority improves the 2nd VRRP priority that second user face equipment is improved after ordering, high in the 2nd VRRP priority When a VRRP priority of first user face equipment, by the VRRP states of second user face equipment from standby shape State switching is main state.

18. methods according to claim 16, it is characterised in that it is described in first user face equipment from cannot provide When service recovery is offer service, the corresponding user profile of second user face equipment, bag are sent to first user face equipment Include：

After first user face device upgrade is finished, second user face equipment correspondence is sent to first user face equipment User profile；

It is described first user face equipment from cannot provide service recovery for offer service when, to first user face equipment send out Send after the corresponding user profile of second user face equipment, also include：

Send priority to first user face equipment and improve order, first user face equipment be used for receive it is described Priority improves the VRRP priority that first user face equipment is improved after ordering, high in a VRRP priority When the 2nd VRRP priority of second user face equipment, by the VRRP states of first user face equipment from standby shape State switching is main state；

Or,

Send priority reduction order to second user face equipment, second user face equipment be used for receive it is described The 2nd VRRP priority of second user face equipment will be reduced after priority reduction order, in the 2nd VRRP priority Less than first user face equipment a VRRP priority when, by the VRRP states of second user face equipment from main shape State switches to stand-by state.

19. methods according to claim 16, it is characterised in that described to provide service in first user face equipment When, the corresponding user profile of first user face equipment is sent to second user face equipment, including：

The VRRP state switching notices that second user face equipment sends are received, the VRRP states switching notice is described First VRRP priority of first user face equipment is less than what is sent during the 2nd VRRP priority of second user face equipment；

The corresponding user profile of first user face equipment is issued to second user face equipment；

Wherein, a VRRP priority is that first user face equipment detects up-link and breaks down by BFD Reduce afterwards；Or, the 2nd VRRP priority is that second user face equipment detects the first user by BFD What the downlink of face equipment or first user face equipment was improved when breaking down.

20. methods according to claim 19, it is characterised in that described to send first use to second user face equipment Before the corresponding user profile of family face equipment, also include：

The keep Alive Packet of the user equipment that second user face equipment sends is received, the keep Alive Packet is used described second Sent when family face equipment query is in the absence of user profile corresponding with the keep Alive Packet；

User profile according to storage is to the user equipment feedback acknowledgment message.

21. methods according to claim 16, it is characterised in that it is described in first user face equipment from cannot provide When service recovery is offer service, to first user face equipment send the corresponding user profile of second user face equipment it Before, also include：

Receive the first state change information that first user face equipment sends, the first state change information is described the What one user plane equipment was sent when being recovered by the uplink failure that BFD detects first user face equipment；

Or,

Receive the second state change information that second user face equipment sends, second state change information is described the Two user plane equipment detect the downlink failure of first user face equipment or first user face equipment by BFD Sent during recovery；

After the user profile is issued and finished, the first switching notice is sent to first user face equipment, described first cuts Change the VRRP priority notified for improving first user face equipment；

Or,

After the user profile is issued and finished, the second switching notice is sent to second user face equipment, described second cuts Change the 2nd VRRP priority notified for reducing second user face equipment.

22. a kind of message feedback devices, it is characterised in that in for second user face equipment, described device includes：

Acquiring unit, for when first user face equipment cannot provide service, the first user being obtained from chain of command equipment The corresponding user profile of face equipment；

Receiving unit, the keep Alive Packet for receiving user equipment transmission, the keep Alive Packet is used to ask the user equipment In presence；

Feedback unit, for the user profile that is obtained according to the acquiring unit to the user equipment feedback acknowledgment report Text.

23. devices according to claim 22, it is characterised in that

The acquiring unit, is additionally operable to, in the first user face device upgrade, receive the institute that the chain of command equipment is issued State the corresponding user profile of first user face equipment.

24. devices according to claim 23, it is characterised in that

The receiving unit, is additionally operable to receive the priority raising order that the chain of command equipment sends；According to the priority Improve the 2nd VRRP priority that order improves second user face equipment；In the 2nd VRRP priority higher than described the During the first VRRP priority of one user plane equipment, the VRRP states of second user face equipment are switched to from stand-by state Major state；

The receiving unit, is additionally operable to receive the VRRP priority that first user face equipment sends, described first VRRP priority is that first user face equipment is reduced after the priority reduction order for receiving the chain of command equipment； When in the second user face, the 2nd VRRP priority of equipment is higher than a VRRP priority, by the second user face The VRRP states of equipment are main state from stand-by state switching.

25. devices according to claim 24, it is characterised in that

The receiving unit, is additionally operable to receive the priority reduction order that the chain of command equipment sends, the priority reduction Order is that the chain of command equipment sends after first user face device upgrade is finished；Ordered according to priority reduction Order reduces the 2nd VRRP priority；When the 2nd VRRP priority is less than a VRRP priority, will be described The VRRP states of second user face equipment switch to the stand-by state from the major state；

The receiving unit, is additionally operable to receive the VRRP priority that first user face equipment sends, and described the One VRRP priority is that first user face equipment is improved after the priority for receiving the chain of command equipment improves order , it is that the chain of command equipment sends after first user face device upgrade is finished that the priority improves order； When the first VRRP priority is higher than the 2nd VRRP priority, by the VRRP states of second user face equipment from institute State major state and switch to the stand-by state.

26. devices according to claim 22, it is characterised in that

The acquiring unit, is additionally operable to cause a VRRP priority of first user face equipment less than described the in failure During the 2nd VRRP priority of two user plane equipment, the VRRP states of second user face equipment are switched to from stand-by state Major state；VRRP state switching notices are sent to the chain of command equipment；Receive the chain of command equipment is issued described first The corresponding user profile of user plane equipment, it is logical that the user profile is that the chain of command equipment receives VRRP states switching Sent after knowing.

27. devices according to claim 26, it is characterised in that

The receiving unit, is additionally operable to receive the VRRP priority that first user face equipment sends, described first VRRP priority is that first user face equipment is detected when up-link breaks down by BFD and reduced；

Or,

The receiving unit, is additionally operable to detecting first user face equipment or first user face equipment by BFD Downlink when breaking down, improve the 2nd VRRP priority.

28. devices according to claim 22, it is characterised in that

The feedback unit, is additionally operable to inquire about in the equipment of the second user face with the presence or absence of use corresponding with the keep Alive Packet Family information；When there is user profile corresponding with the keep Alive Packet, the confirmation message is fed back to the user equipment；When During in the absence of user profile corresponding with the keep Alive Packet, the keep Alive Packet, the control are sent to the chain of command equipment Face equipment processed is used to respond the keep Alive Packet.

29. devices according to claim 26, it is characterised in that

The receiving unit, is additionally operable to receive the VRRP priority that first user face equipment sends, and described the One VRRP priority is that first user face equipment is carried when the first switching notice that the chain of command equipment sends is received It is high, first switching notice be the chain of command equipment according to first state change information to first user face equipment Issue what is sent after user profile is finished, the first state change information is that first user face equipment is detected by BFD To first user face equipment uplink failure recover when to the chain of command equipment send；In a VRRP When priority is higher than the 2nd VRRP priority, the VRRP states of second user face equipment are switched to from major state standby Use state；

The receiving unit, is additionally operable to detecting first user face equipment or first user face equipment by BFD Downlink failure recover when, to the chain of command equipment send the second state change information, according to the chain of command equipment The second switching notice reduction the 2nd VRRP priority for sending, second state change information is used to trigger the control Face equipment issues the user profile to first user face equipment, and second switching notice is the chain of command equipment root Issue what is sent after the user profile is finished to first user face equipment according to second state change information；Described When 2nd VRRP priority is less than a VRRP priority, by the VRRP states of second user face equipment from major state Switch to stand-by state.

30. devices according to claim 29, it is characterised in that the state of the BFD represents failure when being DOWN, described The state of BFD represents normal when being UP；

31. a kind of message feedback devices, it is characterised in that in for first user face equipment, described device includes：

Acquiring unit, for first user face equipment from cannot provide service recovery for provide service state when, from control Face equipment processed obtains the corresponding user profile of second user face equipment；

32. devices according to claim 31, it is characterised in that

The acquiring unit, is additionally operable to after first user face device upgrade is finished, and receives the chain of command equipment and sends The user profile；

The receiving unit, is additionally operable to receive the priority raising order that the chain of command equipment sends, and the priority is improved Order is that the chain of command equipment sends after first user face device upgrade is finished；Improved according to the priority and ordered Order improves a VRRP priority of first user face equipment；It is higher than the second user in a VRRP priority During the 2nd VRRP priority of face equipment, it is main shape that the VRRP states of first user face equipment are switched from stand-by state State；

The receiving unit, is additionally operable to receive the 2nd VRRP priority that second user face equipment sends, described second VRRP priority is that second user face equipment is reduced after the priority reduction order for receiving the chain of command equipment, The priority reduction order is that the chain of command equipment sends after first user face device upgrade is finished；Described When 2nd VRRP priority is less than a VRRP priority, by the VRRP states of first user face equipment from standby shape State switching is main state.

33. devices according to claim 32, it is characterised in that

The receiving unit, is additionally operable to receive the priority reduction order that the chain of command equipment sends, the priority reduction Order is that the chain of command equipment sends in the first user face device upgrade；According to priority reduction order drop First VRRP priority of low first user face equipment；Set less than the second user face in a VRRP priority During standby 2nd VRRP priority, the VRRP states of first user face equipment are switched into stand-by state from major state；

The receiving unit, is additionally operable to receive the 2nd VRRP priority that second user face equipment sends, described second VRRP priority is that second user face equipment is improved after the priority for receiving the chain of command equipment improves order, The priority improves the order chain of command equipment and is sent in the first user face device upgrade；Described first When first VRRP priority of user plane equipment is less than the 2nd VRRP priority, by the VRRP of first user face equipment State switches to stand-by state from major state.

34. devices according to claim 31, it is characterised in that

The receiving unit, is additionally operable to when the uplink failure that first user face equipment is detected by BFD is recovered, First state change information is sent to the chain of command equipment；Receive the chain of command equipment and letter is changed according to the first state The user profile that breath is issued；After the user profile is issued and finished, the first switching for receiving the chain of command equipment transmission is logical Know；A VRRP priority of first user face equipment is improved according to first switching notice；In a VRRP When priority is higher than the 2nd VRRP priority of second user face equipment, by the VRRP states of first user face equipment It is main state from stand-by state switching；

The receiving unit, is additionally operable to receive the 2nd VRRP priority that second user face equipment sends, and described the Two VRRP priority are that second user face equipment drops when the second switching notice that the chain of command equipment sends is received It is low, second switching notice be the chain of command equipment according to the second state change information to first user face equipment Issue what is sent after the user profile is finished, second state change information is that second user face equipment passes through BFD The downlink failure for detecting first user face equipment or first user face equipment is when recovering to the chain of command What equipment sent；In a VRRP priority of the 2nd VRRP priority less than first user face equipment, by institute The VRRP states for stating first user face equipment are main state from stand-by state switching.

35. devices according to claim 31, it is characterised in that

The receiving unit, is additionally operable to detected by BFD after up-link breaks down, and reduces the first user face and sets A standby VRRP priority；In the first user face, the first VRRP priority of equipment is less than second user face equipment The 2nd VRRP priority when, the VRRP states of first user face equipment are switched into stand-by state from major state；

The receiving unit, is additionally operable to receive the 2nd VRRP priority that second user face equipment sends, described second VRRP priority is that second user face equipment detects first user face equipment or the first user face by BFD Improved when the downlink of equipment breaks down；In the 2nd VRRP priority higher than the of first user face equipment During one VRRP priority, the VRRP states of the first user equipment are switched into stand-by state from major state.

36. devices according to claim 34, it is characterised in that the state of the BFD represents failure when being DOWN, described The state of BFD represents normal when being UP；

37. a kind of message feedback devices, it is characterised in that in for chain of command equipment, described device includes：

First transmitting element, for when first user face equipment cannot provide service, sending described to second user face equipment The corresponding user profile of first user face equipment, second user face equipment is used to receive the keep-alive report of user equipment transmission Text, according to the user profile to the user equipment feedback acknowledgment message；

Second transmitting element, for first user face equipment from cannot provide service recovery for offer service when, to the One user plane equipment sends the corresponding user profile of second user face equipment, and first user face equipment is used to receive to be used The keep Alive Packet that family equipment sends, according to the user profile to the user equipment feedback acknowledgment message.

38. device according to claim 37, it is characterised in that

First transmitting element, is additionally operable to, in the first user face device upgrade, be sent out to second user face equipment Send first user face equipment corresponding user profile；

First transmitting element, is additionally operable to send priority reduction order to first user face equipment, and described first uses The VRRP that family face equipment is used to after the priority reduction order is received reduce first user face equipment is preferential Level, in twoth VRRP priority of the VRRP priority less than second user face equipment, described first is used The VRRP states of family face equipment switch to stand-by state from major state；

First transmitting element, order, the second user are improved for sending priority to second user face equipment Face equipment is used to after the priority raising order is received improve the 2nd VRRP priority of second user face equipment, In a VRRP priority of the 2nd VRRP priority higher than first user face equipment, by the second user face The VRRP states of equipment are main state from stand-by state switching.

39. device according to claim 37, it is characterised in that

Second transmitting element, is additionally operable to after first user face device upgrade is finished, and is sent out to first user face equipment Send second user face equipment corresponding user profile；

Second transmitting element, is additionally operable to send priority raising order to first user face equipment, and described first uses The VRRP that family face equipment is used to after the priority raising order is received improve first user face equipment is preferential Level, in twoth VRRP priority of the VRRP priority higher than second user face equipment, described first is used The VRRP states of family face equipment are main state from stand-by state switching；

Second transmitting element, is additionally operable to send priority reduction order to second user face equipment, and described second uses The 2nd VRRP that family face equipment is used to after the priority reduction order is received to reduce second user face equipment is excellent First level, in a VRRP priority of the 2nd VRRP priority less than first user face equipment, by described second The VRRP states of user plane equipment switch to stand-by state from major state.

40. device according to claim 37, it is characterised in that

First transmitting element, is additionally operable to receive the VRRP state switching notices that second user face equipment sends, described VRRP state switching notices are the VRRP priority in first user face equipment less than second user face equipment The 2nd VRRP priority when send；The corresponding user of first user face equipment is issued to second user face equipment Information；Wherein, a VRRP priority is that first user face equipment detects up-link and breaks down by BFD Reduce afterwards；Or, the 2nd VRRP priority is that second user face equipment detects the first user by BFD What the downlink of face equipment or first user face equipment was improved when breaking down.

41. devices according to claim 40, it is characterised in that

First transmitting element, is additionally operable to receive the keep Alive Packet of the user equipment that second user face equipment sends, institute Stating keep Alive Packet is sent out when second user face equipment query is in the absence of user profile corresponding with the keep Alive Packet Send；User profile according to storage is to the user equipment feedback acknowledgment message.

42. device according to claim 37, it is characterised in that

First transmitting element, is additionally operable to receive the first state change information that first user face equipment sends, described First state change information is the up-link that first user face equipment detects first user face equipment by BFD Sent during fault recovery；

First transmitting element, is additionally operable to receive the second state change information that second user face equipment sends, described Second state change information is that second user face equipment detects first user face equipment or described first by BFD What the downlink failure of user plane equipment sent when recovering；

Second transmitting element, is additionally operable to after the user profile is issued and finished, and is sent to first user face equipment First switching notice, first switching notice is used to improve a VRRP priority of first user face equipment；

Second transmitting element, is additionally operable to after the user profile is issued and finished, and is sent to second user face equipment Second switching notice, second switching notice is used to reduce the 2nd VRRP priority of second user face equipment.