CN105207792A - Non-linkage pseudo wire gateway protection system and pseudo wire gateway protection method thereof - Google Patents
Non-linkage pseudo wire gateway protection system and pseudo wire gateway protection method thereof Download PDFInfo
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- CN105207792A CN105207792A CN201410238195.3A CN201410238195A CN105207792A CN 105207792 A CN105207792 A CN 105207792A CN 201410238195 A CN201410238195 A CN 201410238195A CN 105207792 A CN105207792 A CN 105207792A
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Abstract
The embodiment of the invention discloses a non-linkage pseudo wire gateway protection system and a pseudo wire gateway protection method thereof. The system comprises an access device, a first gateway, a second gateway, and an upstream communication device of the first gateway and the second gateway. An assigned work PW is established between the access device and the second gateway. A common work PM is established between the access device and the second gateway. The work PW of the first gateway and the work PW of second gateway are respectively in an active state. Three layers of logic interfaces of each work PW are respectively in a connection UP state. The assigned work PW on the access device is in the active state, and the common work PW is in a standby state. The first gateway and the second gateway notify the upstream communication device of a directly-connected route of the common work PW. The upstream communication device selects one or two PWs for sending a down flow to the access device. The access device sends an up flow through the assigned work PW in the active state. When the assigned work PW breaks down, the access device switches the state of the assigned work PW. According to the invention, loose coupling between the access device and gateways is realized.
Description
Technical field
The present invention relates to the communication technology, especially a kind of pseudo-gauze of non-interlock closes protection system and pseudo-gauze gateway protecting method thereof.
Background technology
Along with third generation mobile communications technology (The3rdGenerationTelecommunication, 3G) and the high speed development of Long Term Evolution (LTE) business, multiple operator has carried out pilot or the construction of IP wireless access network (RAN).Pseudo-line (the PseudoWire of master-slave redundancy is mainly adopted in present stage, PW) enter third layer Virtual Private Network (L3VPN) gateway (GW) method, between access device and gateway by carry in the signaling message setting up PW PW active (active) or (standby) for subsequent use mode bit (hereinafter referred to as: active/standby) set up two gateway interaction relation.As shown in Figure 1, for the pseudo-line of master-slave redundancy in existing RFC6870 standard enters the schematic diagram of third layer virtual private network method.As shown in Figure 1, enter in third layer virtual private network method at the pseudo-line of current standardization master-slave redundancy, access device and gateway carry the active/standby mode bit of PW in message when consulting PW, gateway is by identifying that the active/standby mode bit of PW in message controls the state of PW in this gateway.The tri-level logic interface (being arranged on the gateway 1 of Fig. 1) of main PW of terminating is in active state; The tri-level logic interface (being arranged on the gateway 2 of Fig. 1) of PW for subsequent use of terminating is in standby state, and gateway 1 wherein and gateway 2 are called PW gateway.
Realizing in process of the present invention, inventor finds that the pseudo-line of existing master-slave redundancy enters third layer virtual private network method and at least there is following problem:
On access device and gateway, the state of PW must be synchronous, and the two exists close coupling relation.When main PW break down need to be switched to PW for subsequent use time, first the gateway of PW for subsequent use of terminating must identify fault, then between access device and gateway, again two gateway interaction relation is set up by active/standby mode bit, former PW for subsequent use is switched to main PW, then the tri-level logic interface of the former PW for subsequent use of termination be placed in UP state and upstream issue relevant route (the i.e. direct-connected route of former PW for subsequent use, respective base station business route), upstream receives the new route entry of the direct-connected route representing former PW for subsequent use and upgrades routing table and forwarding information base, the service traffics having restrained rear client could normally forward again.Therefore, switching between active and standby PW gateway relies on networking topology, and the degree of coupling between access device and gateway is high, and the switching time wherein during a gateway failure between active and standby PW gateway is long, have impact on the normal forwarding of service traffics; Under dense deployment and large discharge scene, also increase the complexity that network operation is safeguarded; Between the access device of different manufacturers and gateway, the realization mechanism of RFC6870 standard be there are differences, bad across producer's intercommunication compatibility, effectively cannot realize the pseudo-line of master-slave redundancy in RFC6870 standard and enter third layer virtual private network method.
Summary of the invention
Embodiment of the present invention technical problem to be solved is: consult and gateway protection mechanism for the PW under existing standard mode; the problem that the gateway device degree of coupling caused is high, the disturbance switching time is long; a kind of pseudo-gauze of non-interlock is provided to close protection system and pseudo-gauze gateway protecting method thereof; interconnected with the loose coupling realized between access device and gateway, accelerate disturbance switching convergence rate.
The pseudo-gauze of a kind of non-interlock that the embodiment of the present invention provides closes protection system, comprise the upstream communication equipment of access device, the first gateway, the second gateway and the first gateway and the second gateway, set up between access device and the first gateway and have assigned work PW, setting up between access device and the second gateway has common work PW; On first gateway, the state of assigned work PW is for enlivening active, and on the second gateway, the state of common work PW is active; Assigned work PW and the tri-level logic interface of common work PW are and are connected UP state and are configured to identical internet protocol address and medium access control MAC Address, on access device, the state of assigned work PW is active, and on access device, the state of common work PW is standby for subsequent use;
Described first gateway, for the direct-connected route of upstream assigned work PW described in communication device announces;
Described second gateway, for the direct-connected route of upstream common work PW described in communication device announces;
Described upstream communication equipment, for according to the direct-connected route of described assigned work PW and the direct-connected routing update route information table of described common work PW and forwarding information base; During in response to needs to described access equipment to transmit downlink flow, according to route information table and forwarding information base, select by described assigned work PW and/or described common work PW to described access equipment to transmit downlink flow;
Described access device, for by state being the assigned work PW transmission uplink traffic of active; During described assigned work PW fault, the Status Change of assigned work PW described on this access device is standby by access device, the state of common work PW described on this access device is active thus as new assigned work PW to send uplink traffic.
State in another embodiment of system on the invention, described access device is also for after the fault recovery of described assigned work PW, being active by the recovering state of assigned work PW described on this access device, is standby by the recovering state of common work PW described on this access device.
State in another embodiment of system on the invention, described access device specifically for being in normal condition after the fault recovery of described assigned work PW in predetermined period, being active by the recovering state of assigned work PW described on this access device, is standby by the recovering state of common work PW described on this access device.
State in another embodiment of system on the invention, described upstream communication equipment is also for when described assigned work PW or common work PW fault, according to route information table and forwarding information base, select PW by not breaking down in described assigned work PW and described common work PW to described access equipment to transmit downlink flow.
The pseudo-gauze gateway protecting method of pseudo-line (PW) the gateway protection system of a kind of non-interlock that the embodiment of the present invention provides, described pseudo-gauze closes the upstream communication equipment that protection system comprises access device, the first gateway, the second gateway and the first gateway and the second gateway, set up between access device and the first gateway and have assigned work PW, setting up between access device and the second gateway has common work PW; On first gateway, the state of assigned work PW is for enlivening active, and on the second gateway, the state of common work PW is active; Assigned work PW and the tri-level logic interface of common work PW are and are connected UP state and are configured to identical internet protocol address and medium access control MAC Address, on access device, the state of assigned work PW is active, and on access device, the state of common work PW is standby for subsequent use; Described method comprises:
Described first gateway after access network to the direct-connected route of assigned work PW described in upstream communication devices advertise, described second gateway after access network to the direct-connected route of work PW common described in upstream communication devices advertise;
Described upstream communication equipment is according to the direct-connected routing update route information table of the direct-connected route of described assigned work PW and described common work PW and forwarding information base;
When needing to described access equipment to transmit downlink flow in response to described upstream communication equipment, according to route information table and forwarding information base, select by described assigned work PW and/or described common work PW to described access equipment to transmit downlink flow;
When needing uplink traffic occurs in response to described access device, the assigned work PW being active by state sends uplink traffic;
During in response to described assigned work PW fault, the Status Change of assigned work PW described on this access device is standby by described access device, the state of common work PW described on this access device is active thus as new assigned work PW to send uplink traffic.
State on the invention in another embodiment of method, also comprise:
The state of assigned work PW is configured in advance for enlivening active on the first gateway, the state that second gateway configures common work PW is active, and be connected UP state and identical internet protocol address and medium access to control MAC Address by assigned work PW and the tri-level logic interface configuration of common work PW, the state that access device configures assigned work PW is active, and the state that access device configures common work PW is standby for subsequent use.
State on the invention in another embodiment of method, also comprise:
The recovering state of assigned work PW described on this access device, after the fault recovery of described assigned work PW, is active by described access device, is standby by the recovering state of common work PW described on this access device.
State in another embodiment of method on the invention, the fault recovery of described assigned work PW comprises:
Normal condition is in after the fault recovery of described assigned work PW in predetermined period.
State on the invention in another embodiment of method, also comprise:
Described upstream communication equipment is when described assigned work PW or common work PW fault, according to route information table and forwarding information base, select PW by not breaking down in described assigned work PW and described common work PW to described access equipment to transmit downlink flow.
The pseudo-gauze of the non-interlock provided based on the above embodiment of the present invention closes protection system and pseudo-gauze gateway protecting method thereof, negotiation packet between access device and gateway can not carry active/standby mode bit, on access device, assigned work PW is active, common work PW is standby, on gateway, 2 PW are active, the PW state of access device and gateway does not need synchronously, thus the loose coupling achieved between access device and gateway is mutual; In gateway fails situation, switching between gateway is only carried out in access device this locality, without the need to passing through signaled gateway, two gateway is also without the need to setting up interaction relation, without the need to perception partner state, optimize and simplify PW gateway Switchover mechanism, achieve the single-emission and double-receiving of access device to data retransmission, thus accelerate disturbance switching convergence rate, significantly reduce PW disturbance switching and switchback time, through laboratory test, the present embodiment can realize the sub-Millisecond convergence of disturbance switching, and service traffics packet loss can be ignored; Greatly reduce the difficulty of intercommunication between different manufacturers access device and gateway, achieve and realize flexible deployment under the span producer condition being convenient to access device and gateway.In addition, compared with Virtual Router Redundacy Protocol (VRRP), the present embodiment does not rely on heartbeat message and cycle thereof, and without too much broadcast traffic, so in fail safe with switch in speed and have no small advantage equally.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Accompanying drawing explanation
What form a part for specification drawings describes embodiments of the invention, and is used from explanation principle of the present invention together with description one.
With reference to accompanying drawing, according to detailed description below, clearly the present invention can be understood, wherein:
Fig. 1 is the schematic diagram that the pseudo-line of existing standard master-slave redundancy enters third layer virtual private network method.
Fig. 2 is the structural representation of a PW gateway protection system embodiment of the non-interlock of the present invention.
Fig. 3 is the flow chart of a PW gateway guard method embodiment of the non-interlock of the present invention.
Fig. 4 is the contrast schematic diagram of PW route announcement mechanism in existing standard and embodiment of the present invention method.
Fig. 5 is the contrast schematic diagram of downlink traffic forwarding mechanism in existing standard and embodiment of the present invention method.
Embodiment
Various exemplary embodiment of the present invention is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part for specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 2 is the structural representation of a PW gateway protection system embodiment of the non-interlock of the present invention.As shown in Figure 2, the PW gateway protection system of the non-interlock of this embodiment comprises the upstream communication equipment of access device, the first gateway (also referred to as a PW gateway), the second gateway (also referred to as the 2nd PW gateway) and the first gateway and the second gateway.Upstream communication equipment wherein can be such as client edge router (CustomerEdgeRouters).Set up between access device and the first gateway and have assigned work PW, setting up between access device and the second gateway has common work PW.On first gateway, the state of assigned work PW is active, and on the second gateway, the state of common work PW is active, the tri-level logic interface of the assigned work PW set up and common work PW (is respectively the PW gateway at assigned work PW and common work PW place, that is: the first gateway and the second gateway) be and be connected UP state, negotiation packet between access device and the first/the second gateway can not carry active/standby mode bit, negotiation packet now only for setting up and keep-alive PW between access device and gateway, the tri-level logic interface of assigned work PW and common work PW is configured to identical Internet protocol (IP) address and medium access controls (MAC Address).On access device, the state of assigned work PW is active, and on access device, the state of common work PW is standby.PW state between access device and gateway does not need synchronously, thus the solution achieved between access device with gateway is coupled.
Wherein, the first gateway, for the direct-connected route of upstream communication device announces assigned work PW, respective base station business route.
Second gateway, for the direct-connected route of upstream communication device announces common work PW, respective base station business route.
That is: for gateway, the work PW set up is active state, all by upstream (L3VPN) notice of its direct-connected route, as shown in Figure 4.
Upstream communication equipment, for according to the direct-connected route of assigned work PW and the direct-connected routing update route information table of common work PW and forwarding information base; During in response to needs to access equipment to transmit downlink flow, select to the assigned work PW of access equipment to transmit downlink flow and/or common work PW according to preset strategy, and obtain from route information table and forwarding information base and send the business routing iinformation of downlink traffic, by the assigned work PW that selects and/or common work PW to access equipment to transmit downlink flow.For access device, downlink traffic allows to receive from two work PW.
Access device, for by state being the assigned work PW transmission uplink traffic of active; And when assigned work PW fault, the Status Change of assigned work PW on this access device is standby by access device, the state of work PW common on this access device is active thus as new assigned work PW to send uplink traffic.
Non-joint-action mechanism between the access device that the embodiment of the present invention is introduced and gateway, effectively can avoid the close coupling between network element, improve its independence, clear away the obstacle of intercommunication between devices from different manufacturers, simplify gateway Switchover mechanism, significantly improve disturbance switching speed: compared with entering third layer virtual private network method with the pseudo-line of standardization master-slave redundancy, PW negotiation packet can not carry active/standby mode bit, and now negotiation packet is only for foundation and the keep-alive of PW, standby the dividing of gateway device dereliction, gateway also need not the state of another gateway of perception, two gateways are all using the direct-connected route upstream communication device announces of the PW network segment as oneself, when needing when breaking down at Access Layer or gateway device to carry out PW switching, former route information table due to upstream communication equipment has two route entrys can arrive base station (by place in circuit (attachedcircuit, AC) access device is connected), as long as therefore configuration arbitrary strategy detection PW fault can be switched, and switch and only carry out in access device this locality, without the need to PW state being informed gateway by signaling, the route of upstream communication equipment is also without the need to again restraining, conditioning can be realized switch, thus substantially reduce the disturbance switching time.In data retransmission aspect, the tri-level logic interface of PW that base station network side interface and gateway terminate belongs to the same network segment, and configures a default static route and point to two gateways, and uplink traffic is carried by the preferred assigned work PW of access device and encapsulated service traffics; Downlink traffic can carry out PW level load balancing by upstream communication equipment according to backbone protocol between two PW, or an optional PW forwards, and viewed from access device, two PW is single-emission and double-receiving state.
In another embodiment of PW gateway protection system of the non-interlock of the present invention; access device is also for after the fault recovery of assigned work PW; being active by the recovering state of assigned work PW on this access device, is standby by the recovering state of work PW common on this access device.
Particularly, after fault recovery, avoid the shake of forward-path, access device time delay switchback can carry out uplink traffic forwarding to former assigned work PW, that is: access device specifically for being in normal condition (that is: the state of assigned work PW is without saltus step) after the fault recovery of assigned work PW and in predetermined period, the recovering state of assigned work PW on this access device is active by, is standby by the recovering state of work PW common on this access device.Otherwise, if the state of assigned work PW exists saltus step in predetermined period, then restart according to predetermined period timing, effectively can reduce the effect of jitter that pseudo-line states saltus step causes forward-path like this.
In another embodiment of PW gateway protection system of the non-interlock of the present invention; when upstream communication equipment is also used in assigned work PW or common work PW fault; according to route information table and forwarding information base, select PW by not breaking down in assigned work PW and common work PW to access equipment to transmit downlink flow.
Fig. 3 is the flow chart of a PW gateway guard method embodiment of the non-interlock of the present invention.The PW gateway guard method of the non-interlock of this embodiment specifically can realize based on the PW gateway protection system of non-interlock embodiment illustrated in fig. 2.Wherein, the PW gateway protection system of non-interlock comprises the upstream communication equipment of access device, the first gateway, the second gateway and the first gateway and the second gateway.Set up between access device and the first gateway and have assigned work PW, setting up between access device and the second gateway has common work PW.On first gateway, the state of assigned work PW is active, and on the second gateway, the state of common work PW is active; Assigned work PW and the tri-level logic interface of common work PW are and are connected UP state and are configured to identical IP address and MAC Address.On access device, the state of assigned work PW is active, and on access device, the state of common work PW is standby.As shown in Figure 3, the PW gateway guard method of the non-interlock of this embodiment comprises:
110, first gateway after access network to the direct-connected route of upstream communication devices advertise assigned work PW, the second gateway after access network to the direct-connected route of upstream communication devices advertise common work PW.As shown in Figure 4, be the contrast schematic diagram of PW route announcement mechanism in existing standard and embodiment of the present invention method.
120, upstream communication equipment is according to the direct-connected routing update route information table of the direct-connected route of assigned work PW and common work PW and forwarding information base.
130, when needing to access equipment to transmit downlink flow in response to upstream communication equipment, select to the assigned work PW of access equipment to transmit downlink flow and/or common work PW according to preset strategy, and obtain from route information table and forwarding information base and send the business routing iinformation of downlink traffic, by the assigned work PW that selects and/or common work PW to access equipment to transmit downlink flow.Fig. 5 is the contrast schematic diagram of downlink traffic forwarding mechanism in existing standard and embodiment of the present invention method, illustrated therein is simultaneously by the situation of assigned work PW and common work PW to access equipment to transmit downlink flow.
140, need uplink traffic occurs in response to access device, the assigned work PW that access device is active by state sends uplink traffic.
150, during in response to assigned work PW fault, the Status Change of assigned work PW on this access device is standby by access device, the state of work PW common on this access device is active thus as new assigned work PW to send uplink traffic.
Wherein, operation 130,140 and 150 triggers based on the respective trigger condition of above-mentioned record respectively and performs, do not exist between three the time of implementation or sequentially on restriction.
In another embodiment of PW gateway guard method of the non-interlock of the present invention; can also comprise: on the first gateway, configure the state of assigned work PW in advance for enlivening active; the state that second gateway configures common work PW is active; and be connected UP state and identical internet protocol address and medium access to control MAC Address by assigned work PW and the tri-level logic interface configuration of common work PW; the state that access device configures assigned work PW is active, and the state that access device configures common work PW is standby for subsequent use.
In another embodiment of PW gateway guard method of the non-interlock of the present invention; can also comprise: access device is after the fault recovery of assigned work PW; being active by the recovering state of assigned work PW on this access device, is standby by the recovering state of work PW common on this access device.
Particularly, after fault recovery, avoid the shake of forward-path, the fault recovery of assigned work PW can be after the fault recovery of assigned work PW and be in normal condition in predetermined period, like this, access device time delay switchback can carry out uplink traffic forwarding to former assigned work PW.If the state of assigned work PW exists saltus step in predetermined period, then restart according to predetermined period timing, effectively can reduce the effect of jitter that pseudo-line states saltus step causes forward-path like this.
In another embodiment of PW gateway guard method of the non-interlock of the present invention; can also comprise: upstream communication equipment is when assigned work PW or common work PW fault; according to route information table and forwarding information base, select PW by not breaking down in assigned work PW and common work PW to access equipment to transmit downlink flow.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, same or analogous part cross-reference between each embodiment.Because System and method for embodiment is substantially corresponding, the part of the corresponding embodiment of relevant part cross-reference illustrates.
Method of the present invention, system may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method and system of the present invention.Said sequence for the step of described method is only to be described, and the step of method of the present invention is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, can be also record program in the recording medium by the invention process, these programs comprise the machine readable instructions for realizing according to method of the present invention.Thus, the present invention also covers the recording medium stored for performing the program according to method of the present invention.
Claims (9)
1. pseudo-line (PW) the gateway protection system of a non-interlock, comprise the upstream communication equipment of access device, the first gateway, the second gateway and the first gateway and the second gateway, it is characterized in that, set up between access device and the first gateway and have assigned work PW, setting up between access device and the second gateway has common work PW; On first gateway, the state of assigned work PW is for enlivening active, and on the second gateway, the state of common work PW is active; Assigned work PW and the tri-level logic interface of common work PW are and are connected UP state and are configured to identical internet protocol address and medium access control MAC Address, on access device, the state of assigned work PW is active, and on access device, the state of common work PW is standby for subsequent use;
Described first gateway, for the direct-connected route of upstream assigned work PW described in communication device announces;
Described second gateway, for the direct-connected route of upstream common work PW described in communication device announces;
Described upstream communication equipment, for according to the direct-connected route of described assigned work PW and the direct-connected routing update route information table of described common work PW and forwarding information base; During in response to needs to described access equipment to transmit downlink flow, according to route information table and forwarding information base, select by described assigned work PW and/or described common work PW to described access equipment to transmit downlink flow;
Described access device, for by state being the assigned work PW transmission uplink traffic of active; During described assigned work PW fault, the Status Change of assigned work PW described on this access device is standby by access device, the state of common work PW described on this access device is active thus as new assigned work PW to send uplink traffic.
2. system according to claim 1, it is characterized in that, described access device is also for after the fault recovery of described assigned work PW, being active by the recovering state of assigned work PW described on this access device, is standby by the recovering state of common work PW described on this access device.
3. system according to claim 2, it is characterized in that, described access device specifically for being in normal condition after the fault recovery of described assigned work PW in predetermined period, being active by the recovering state of assigned work PW described on this access device, is standby by the recovering state of common work PW described on this access device.
4. the system according to claims 1 to 3 any one, it is characterized in that, described upstream communication equipment is also for when described assigned work PW or common work PW fault, according to route information table and forwarding information base, select PW by not breaking down in described assigned work PW and described common work PW to described access equipment to transmit downlink flow.
5. the pseudo-gauze gateway protecting method of pseudo-line (PW) the gateway protection system of a non-interlock, it is characterized in that, described pseudo-gauze closes the upstream communication equipment that protection system comprises access device, the first gateway, the second gateway and the first gateway and the second gateway, set up between access device and the first gateway and have assigned work PW, setting up between access device and the second gateway has common work PW; On first gateway, the state of assigned work PW is for enlivening active, and on the second gateway, the state of common work PW is active; Assigned work PW and the tri-level logic interface of common work PW are and are connected UP state and are configured to identical internet protocol address and medium access control MAC Address, on access device, the state of assigned work PW is active, and on access device, the state of common work PW is standby for subsequent use; Described method comprises:
Described first gateway after access network to the direct-connected route of assigned work PW described in upstream communication devices advertise, described second gateway after access network to the direct-connected route of work PW common described in upstream communication devices advertise;
Described upstream communication equipment is according to the direct-connected routing update route information table of the direct-connected route of described assigned work PW and described common work PW and forwarding information base;
When needing to described access equipment to transmit downlink flow in response to described upstream communication equipment, according to route information table and forwarding information base, select by described assigned work PW and/or described common work PW to described access equipment to transmit downlink flow;
When needing uplink traffic occurs in response to described access device, the assigned work PW being active by state sends uplink traffic;
During in response to described assigned work PW fault, the Status Change of assigned work PW described on this access device is standby by described access device, the state of common work PW described on this access device is active thus as new assigned work PW to send uplink traffic.
6. method according to claim 5, is characterized in that, also comprises:
The state of assigned work PW is configured in advance for enlivening active on the first gateway, the state that second gateway configures common work PW is active, and be connected UP state and identical internet protocol address and medium access to control MAC Address by assigned work PW and the tri-level logic interface configuration of common work PW, the state that access device configures assigned work PW is active, and the state that access device configures common work PW is standby for subsequent use.
7. method according to claim 6, is characterized in that, also comprises:
The recovering state of assigned work PW described on this access device, after the fault recovery of described assigned work PW, is active by described access device, is standby by the recovering state of common work PW described on this access device.
8. method according to claim 7, is characterized in that, the fault recovery of described assigned work PW comprises:
Normal condition is in after the fault recovery of described assigned work PW in predetermined period.
9. the method according to claim 5 to 8 any one, is characterized in that, also comprises:
Described upstream communication equipment is when described assigned work PW or common work PW fault, according to route information table and forwarding information base, select PW by not breaking down in described assigned work PW and described common work PW to described access equipment to transmit downlink flow.
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| CN113891373A (en) * | 2021-10-11 | 2022-01-04 | 中盈优创资讯科技有限公司 | Base station quality degradation self-healing method and device |
| CN113965506A (en) * | 2021-11-01 | 2022-01-21 | 南京熊猫汉达科技有限公司 | Gateway backup method and system |
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| CN113965506A (en) * | 2021-11-01 | 2022-01-21 | 南京熊猫汉达科技有限公司 | Gateway backup method and system |
| CN113965506B (en) * | 2021-11-01 | 2023-02-28 | 南京熊猫汉达科技有限公司 | Gateway backup method and system |
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