CN109067632A - A kind of RPR intersecting ring logic interface state switching method and device - Google Patents
A kind of RPR intersecting ring logic interface state switching method and device Download PDFInfo
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- CN109067632A CN109067632A CN201810818605.XA CN201810818605A CN109067632A CN 109067632 A CN109067632 A CN 109067632A CN 201810818605 A CN201810818605 A CN 201810818605A CN 109067632 A CN109067632 A CN 109067632A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
- H04L41/0661—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities by reconfiguring faulty entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/18—Protocol analysers
Abstract
The embodiment of the invention provides a kind of RPR intersecting ring logic interface state switching method and devices, it is the equipment where the intersecting ring logic interface of blocked state applied to original state in RPR intersecting ring networking, method includes: to monitor the state for the intersecting ring logic interface that original state on local device is forwarding state；Receive the monitoring protocol massages that opposite equip. is sent according to predetermined period；It identifies and according to the numerical value for specifying bit in monitoring protocol massages, determines that original state on opposite equip. is the state of the intersecting ring logic interface of forwarding state；If it is malfunction that original state, which is the state of at least one intersecting ring logic interface in all intersecting ring logic interfaces of forwarding state, on local device and opposite equip., the state for the intersecting ring logic interface that original state is blocked state is switched to forwarding state from blocked state.By this programme, the Transmission time of the data frame in occurrence of equipment failure can be shortened.
Description
Technical field
The present invention relates to Internet technical field, more particularly to a kind of RPR intersecting ring logic interface state switching method and
Device.
Background technique
RPR (Resilient Packet Ring, resilient packet ring) technology is that one kind optimizes message transmissions on ring structure
Novel MAC (Media Access Control, media access control) agreement, can run on SONET (Synchronous
Optical Network, Synchronous Optical Network)/SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy),
The multiple physical layers such as DWDM (Dense Wavelength Division Multiplexing, level of confidentiality wavelength-division multiplex), Ethernet
On, the message of the numerous types of data such as voice, image can be effectively transmitted, provides flexible height for broadband IP MAN operator
The networking plan of effect.
RPR ring is known as using the loop network that RPR technology forms, RPR ring structure is as shown in Figure 1.With Internet technology
Development, network environment becomes increasingly complex, and the networking model of single RPR ring composition is no longer satisfied the requirement of message transmissions,
It needs to carry out message transmissions between multiple RPR rings.As shown in Fig. 2, to meet the need for carrying out message transmissions between multiple RPR rings
It asks, intersecting ring networking is formed between RPR ring, two equipment being connected between two RPR rings of intersection are intersection equipment.In RPR
In intersecting ring networking, data frame broadcasts forwarding in two RPR rings, easily formation broadcast storm.In order to avoid broadcast storm, adopt more
With STP (Spanning Tree Protocol, Spanning-Tree Protocol), any intersecting ring logic interface that one intersects equipment is arranged
For blocked state, logically open-loop, as shown in figure 3, the state of the intersecting ring logic interface RPR6/0/1 of equipment 4 is arranged
It, thus can be to avoid there is broadcast storm in RPR intersecting ring for blocked state.
If any intersection equipment occurrence of equipment failure, for example, some intersecting ring logic interface of equipment shown in Fig. 33
It breaks down, considers period and the propagation delay time of data frame transfer, the needs of equipment 4 are not received by within a very long time
After the data frame that equipment 3 is sent, just forwarding state can be set by the state of intersecting ring logic interface RPR6/0/1, to guarantee data
Normal transmission of the frame in RPR intersecting ring networking, in this way, the state switching of intersecting ring logic interface can not quickly tracking equipment event
Barrier, causes in occurrence of equipment failure, the Transmission overlong time of data frame.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of RPR intersecting ring logic interface state switching method and device, with contracting
The Transmission time of the short data frame in occurrence of equipment failure.Specific technical solution is as follows:
In a first aspect, being applied to elasticity the embodiment of the invention provides a kind of RPR intersecting ring logic interface state switching method
In grouping ring RPR intersecting ring networking, original state is the equipment where the intersecting ring logic interface of blocked state, the method packet
It includes:
Monitor the state for the intersecting ring logic interface that original state in the equipment is forwarding state；
Receive the monitoring protocol massages that opposite equip. is sent according to predetermined period；
Identify the numerical value that bit is specified in the monitoring protocol massages；
According to the numerical value of the designated bit position, determine that original state is the intersecting ring of forwarding state on the opposite equip.
The state of logic interface；
If on the equipment and the opposite equip. original state be forwarding state all intersecting ring logic interfaces at least
The state of one intersecting ring logic interface is malfunction, then by the shape for the intersecting ring logic interface that the original state is blocked state
State is switched to forwarding state from blocked state.
Second aspect, the embodiment of the invention provides a kind of RPR intersecting ring logic interface state switching devices, are applied to RPR
In intersecting ring networking, original state is the equipment where the intersecting ring logic interface of blocked state, and described device includes:
Monitoring modular, for monitoring the state for the intersecting ring logic interface that original state in the equipment is forwarding state；It connects
Receive the monitoring protocol massages that opposite equip. is sent according to predetermined period；Identify the number that bit is specified in the monitoring protocol massages
Value；According to the numerical value of the designated bit position, determine that original state is the intersecting ring logic of forwarding state on the opposite equip.
The state of mouth；
Switching module, if original state is all intersecting rings of forwarding state in the equipment and the opposite equip.
The state of at least one intersecting ring logic interface is malfunction in logic interface, then is the intersection of blocked state by the original state
The state of ring logic interface is switched to forwarding state from blocked state.
A kind of RPR intersecting ring logic interface state switching method and device provided in an embodiment of the present invention, RPR intersecting ring networking
In, the original state for presetting an intersecting ring logic interface of an equipment in two intersection equipment is blocked state, the equipment
The state for the intersecting ring logic interface that its original state is forwarding state is monitored, and by receiving opposite equip. according to predetermined period
The monitoring protocol massages of transmission, identify and according to the numerical value for specifying bit in monitoring protocol massages, determine on opposite equip. just
Beginning state is the state of the intersecting ring logic interface of forwarding state, if original state is forwarding state on local device and opposite equip.
All intersecting ring logic interfaces at least one intersecting ring logic interface state be malfunction, then by original state be obstruction shape
The slave blocked state of the intersecting ring logic interface of state is switched to forwarding state.Using on monitoring protocol massages actively monitoring opposite equip.
The state of intersecting ring logic interface, monitoring protocol massages are independently of the protocol massages for being used to be forwarded detection of data frame,
Transmission cycle is significantly less than data frame, so as to shorten the Transmission time of data frame in occurrence of equipment failure.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the RPR ring of the prior art；
Fig. 2 is the structural schematic diagram of the RPR intersecting ring of the prior art；
Fig. 3 is the structural schematic diagram of the RPR intersecting ring for avoiding loop of the prior art；
Fig. 4 is the forwarding process schematic diagram of the unicast data frames of the prior art；
Fig. 5 is the forwarding process schematic diagram of the broadcast data frame of the prior art, multicast packet frame and unknown unicast data frame；
Fig. 6 is the flow diagram of the RPR intersecting ring logic interface state switching method of the embodiment of the present invention；
The structural schematic diagram of the RPR intersecting ring logic interface state switching device of the position Fig. 7 embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the network equipment of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is carried out to be more convenient for being provided for the embodiments of the invention RPR intersecting ring logic interface state switching method and device
Understand, the relevant basic conception of RPR technology is made to introduce first below.
RPR technology is designed to support the data service of large capacity in Metropolitan Area Network, has the following characteristics that object
Manage layer diversity；Bandwidth availability ratio is high；Support broadcast and multicast；Topological automatic discovering, the plug and play of holding equipment；Quickly protect
Protection mechanism can be realized the fault self-recovery of Millisecond by topology protection；By supporting bandwidth reservation business and rate limit
Flow grade is provided to guarantee；Fair bandwidth allocation.These features provide support for the extensive use of RPR technology.
RPR uses reverse twin nuclei, as shown in Figure 1, data frame transfer direction is clockwise (the solid line group in Fig. 1
At ring) be known as 0 ring, data frame transfer direction is that (ring of the dotted line composition in Fig. 1) counterclockwise is known as 1 ring.It connects adjacent
One section of transmission channel of equipment is known as link, is connected between neighbouring device by contrary both links, and two adjacent
Contrary both links constitute section between equipment；Equipment in multiple continuous sections and these sections constitutes domain；In 0 ring
Upper reception data frame, the physical port that data frame is sent on 1 ring are known as west to port；Data frame is sent on 0 ring, in 1 ring
The upper physical port for receiving data frame is known as east orientation port；When section and/or the adjacent equipment of section break down, section cannot be forwarded
Data frame just becomes side；The state of RPR ring is divided into closed loop states and open loop situations, is closed loop states there is no the RPR ring on side, deposits
RPR ring on side is open loop situations.
Rpr interface can be divided into two class of RPR logic interface and RPR port from form.RPR equipment from west to east orientation this
Two kinds of RPR ports are constituted, and two RPR ports and a RPR logic interface binding become a RPR equipment.
In RPR looped network, data manipulation is completed in equipment and ring cooperation, and mode of operation includes following four: upper ring, equipment will
Data frame outside RPR looped network is inserted into the data flow of RPR looped network；Cross ring, equipment is by this equipment of approach on RPR looped network
Data frame is transmitted to next equipment；Lower ring, equipment receives data frame from the data flow of RPR looped network, and data frame is replicated
Portion gives this equipment upper layer and does respective handling, and lower ring operation can't terminate forwarding of the data frame on RPR looped network；Removing,
Equipment deletes data frame, terminates its forwarding on RPR looped network.
Aforesaid operations mode and combinations thereof is respectively adopted to provide to unicast, broadcast, multicast and unknown unicast in each equipment
Support.
As shown in figure 4, RPR ring includes the following steps: to hold data frame in source device to the pass-through mode of unicast data frames
Ring operates on row, is inserted into the data flow of 0 ring or 1 ring；In each intermediate equipment of data frame approach, all it was executed
Ring operation；It is right when TTL (Time To Live, life span) value of data frame arrival purpose equipment or the data frame becomes 0
It executes lower ring and strip operation.
As shown in figure 5, RPR ring includes to the pass-through mode of broadcast data frame, multicast packet frame and unknown unicast data frame
Following steps: upper ring operation is executed in source device to data frame, is inserted into the data flow of 0 ring or 1 ring；In data frame approach
Each equipment, as long as the ttl value of the data frame is not 0, all it is executed data cross ring and lower ring operation；When data frame returns
When returning to the ttl value of source device or the data frame becomes 0, strip operation is executed to it.
It is removed by original equipment, it is ensured that single RPR is not in broadcast storm on ring, when there are two the intersections of RPR ring
When, two RPR rings all in the same VLAN (Virtual Local Area Network, virtual LAN), can not just be kept away
Exempt from broadcast storm.
In order to avoid the broadcast storm of RPR intersecting ring networking, and shorten the transmission of the data frame in occurrence of equipment failure
Break period, the embodiment of the invention provides a kind of RPR intersecting ring logic interface state switching method and devices.In the following, right first
A kind of RPR intersecting ring logic interface state switching method provided by the embodiment of the present invention is introduced.
The executing subject of RPR intersecting ring logic interface state switching method provided by the embodiment of the present invention can be RPR phase
In cross ring networking, original state is the equipment where the intersecting ring logic interface of blocked state, two intersections in RPR intersecting ring networking
By a link connection between ring apparatus, therefore the opposite end that another equipment in two intersection equipment is properly termed as above equipment is set
It is standby.Respectively there are two the intersecting ring logic interfaces in RPR intersecting ring networking for two intersection equipment in RPR intersecting ring networking, first
In the case of beginning, blocked state is set by the original state of an intersecting ring logic interface in one of equipment, intersects equipment
It can be the network equipments such as interchanger, router, intersect and include at least the exchange chip with control function in equipment.Realize this
The mode of RPR intersecting ring logic interface state switching method provided by inventive embodiments can be set to it is soft in executing subject
At least one of part, hardware circuit and logic circuit.
As shown in fig. 6, a kind of RPR intersecting ring logic interface state switching method provided by the embodiment of the present invention, can wrap
Include following steps:
S601 monitors the state for the intersecting ring logic interface that original state on local device is forwarding state.
The state for the intersecting ring logic interface that itself original state is forwarding state can be monitored in real time in local device, and judgement should
The current state of intersecting ring logic interface is normal or failure, be can be in real time to the monitoring of the intersecting ring logic interface state
It is continual, it is also possible to periodically.
S602 receives the monitoring protocol massages that opposite equip. is sent according to predetermined period.
Monitoring protocol massages are independently of the protocol massages for being used to be forwarded detection of data frame.Local device and opposite end
Monitoring protocol massages can be interacted between equipment, for informing that the forwarding state of this equipment of other side, each equipment can monitor itself
The state of intersecting ring logic interface, the state that monitored intersecting ring logic interface is carried in monitoring protocol massages are sent to opposite end
Equipment, in this way, local device can monitor the state of two intersecting ring logic interfaces on opposite equip. by monitoring agreement.Prison
Surveying protocol massages can be fast for BFD (Bidirectional Forwarding Detection, two-way converting detection) message etc.
Fast detection messages, or the protocol massages for only carrying intersecting ring logic interface state, since monitoring protocol massages are independently of number
According to frame, and entrained data are seldom, and transmission rate, generated time delay are significantly better than that data frame, therefore, set in opposite end
When preparation generating apparatus failure, monitor that the speed of opposite equip. failure significantly improves by monitoring protocol massages.In order to guarantee to set
The real-time of standby monitoring, the interaction for monitoring protocol massages is often periodic, and monitor the interaction cycles of protocol massages with
The monitoring cycle of equipment monitoring itself intersecting ring logic interface is same or similar.
S603, identification monitor the numerical value that bit is specified in protocol massages.
The state of the intersecting ring logic interface on opposite equip. can be carried in monitoring protocol massages, the state is by monitoring agreement
The numerical value of bit number is specified in message to be indicated, different numerical value represents different states, for example, " 0 " expression malfunction,
" 1 " indicates normal condition, only other numerical value can also be taken to represent different states by taking " 0 ", " 1 " as an example here.
S604 determines that original state is that the intersecting ring of forwarding state is patrolled on opposite equip. according to the numerical value of designated bit position
Collect the state of mouth.
Opposite equip. sends monitoring protocol massages according to predetermined period, and local device often receives a monitoring agreement report
Text will identify the numerical value that bit is specified in monitoring protocol massages, for example, the 5th expression pair of specified monitoring protocol massages
Whether the state of the intersecting ring logic interface of end equipment is malfunction, if the 5th of monitoring protocol massages is 1, then it represents that right
The equal normal condition of state of the intersecting ring logic interface of end equipment, if the 5th of monitoring protocol massages is 0, then it represents that opposite end is set
The state of at least one intersecting ring logic interface is malfunction in standby intersecting ring logic interface.
Alternatively, when monitoring protocol massages is BFD message, since the 9th to 31 is reserved bit, Ke Yishe in BFD message
Whether set such as the 9th state come the intersecting ring logic interface for indicating opposite equip. is malfunction.If local device receives
The BFD message sent to opposite equip. is 1 by identification the 9th, then can determine the shape of the intersecting ring logic interface of opposite equip.
State is normal condition；If local device receives the BFD message of opposite equip. transmission, it is 0 by identification the 9th, then may be used
Using the state of at least one intersecting ring logic interface in the intersecting ring logic interface for determining opposite equip. as malfunction.
The period of local device and opposite equip. interaction monitoring protocol massages is often 10 milliseconds or shorter, so as to
Guarantee that local device can monitor the state of intersecting ring logic interface on opposite equip. within the very short time, is being sent out to shorten
The Transmission time of data frame provides support when generating apparatus failure, realizes the other monitoring of Millisecond, switching.
In order to which optionally prison can be set in the more accurate state for detecting each intersecting ring logic interface on opposite equip.
Surveying includes two designated bit positions in protocol massages.
Then S604 is specifically as follows:
If the numerical value of designated bit position is specified failure numerical value, it is determined that the corresponding intersecting ring logic interface in the designated bit position
State be malfunction；
If the numerical value of designated bit position is specified regime values, it is determined that the corresponding intersecting ring logic interface in the designated bit position
State be normal condition.
By the way that two designated bit positions are arranged, the state of two intersecting ring logic interfaces on opposite equip. is respectively corresponded, is specified
Failure numerical value is that the state of characterization intersecting ring logic interface is the numerical value of malfunction, such as " 0 ", and specifying regime values is characterization phase
The state of cross ring logic interface is the numerical value of normal condition, such as " 1 ".Assuming that the 5th expression opposite end of specified monitoring protocol massages
Whether the state of an intersecting ring logic interface is malfunction in equipment, another intersecting ring is patrolled on the 6th expression opposite equip.
Whether the state for collecting mouth is malfunction.If the 5th that monitors protocol massages is " 1 ", then it represents that corresponding intersecting ring logic
The state of mouth is normal condition, if the 5th of monitoring protocol massages is " 0 ", then it represents that the shape of corresponding intersecting ring logic interface
State is malfunction；If the 6th that monitors protocol massages is " 1 ", then it represents that the state of corresponding intersecting ring logic interface is positive
Normal state, if the 6th of monitoring protocol massages is " 0 ", then it represents that the state of corresponding intersecting ring logic interface is malfunction.
In another example can be set such as the 9th and the 10th when monitoring protocol massages is BFD message to respectively indicate
Whether the state of two intersecting ring logic interfaces is malfunction on opposite equip..If local device receives opposite equip. transmission
BFD message, by identification the 9th be " 1 ", then can determine corresponding intersecting ring logic interface state be normal condition；It is logical
Crossing identification the 9th is " 0 ", then can determine that the state of corresponding intersecting ring logic interface is malfunction；Pass through identification the 10th
For " 1 ", then it can determine that the state of corresponding intersecting ring logic interface is normal condition；It is " 0 " by identification the 10th, then it can be with
The state for determining corresponding intersecting ring logic interface is malfunction.
Optionally, RPR intersecting ring logic interface state switching method provided by the embodiment of the present invention can also be performed as follows
Step:
If not receiving monitoring protocol massages in preset interval, the intersecting ring that original state is blocked state is patrolled
The state for collecting mouth is switched to forwarding state from blocked state, wherein preset interval is greater than predetermined period.
Local device is set after receiving a monitoring protocol massages if being not received by opposite end in preset interval
The monitoring protocol massages that preparation is sent then illustrate that failure has occurred in opposite equip. itself, and equipment can not work normally, then can be direct
The state for the intersecting ring logic interface that original state on local device is blocked state is switched to forwarding state from blocked state.
Need to illustrate a bit, shown in S601 is the intersecting ring logic interface of forwarding state to original state on local device
State monitoring step and S602 to S604 shown in original state on opposite equip. be forwarding state intersecting ring logic
Mouthful the monitoring step of state can be parallel execution, be also possible to serially to execute, Fig. 6 has been merely given as one of feelings
Condition, not as the specific restriction of execution sequence.
S605, if on local device and opposite equip. original state be forwarding state all intersecting ring logic interfaces at least
The state of one intersecting ring logic interface be malfunction, then by original state be blocked state intersecting ring logic interface state from
Blocked state is switched to forwarding state.
If monitoring that the original state on local device and opposite equip. is all intersecting ring logic interfaces of forwarding state
In, having 1 or 2 or 3 state is malfunction, then by the state for the intersecting ring logic interface that original state is blocked state
It is switched to forwarding state from blocked state, to guarantee that data frame can be with normal transmission.
Optionally, after S605, RPR intersecting ring logic interface state switching method provided by the embodiment of the present invention may be used also
S601 to S604 is executed to return, and executes following steps:
If original state is that the state of all intersecting ring logic interfaces of forwarding state is on local device and opposite equip.
The state for the intersecting ring logic interface that original state is blocked state is then switched to blocked state from forwarding state by normal condition.
After the state switching to the intersecting ring logic interface that original state is blocked state, local device continues to monitor it
And original state is the state of the intersecting ring logic interface of forwarding state on opposite equip., if the state of these intersecting ring logic interfaces
It is all restored to normal condition, then by the shape for the intersecting ring logic interface that the original state for being switched to forwarding state before is blocked state
State switches back into blocked state from forwarding state, to avoid broadcast storm.
Optionally, RPR intersecting ring logic interface state switching method provided by the embodiment of the present invention can also be performed as follows
Step:
If original state is at least one in all intersecting ring logic interfaces of forwarding state on local device and opposite equip.
The state of intersecting ring logic interface is malfunction, then keeping the state for the intersecting ring logic interface that original state is blocked state is to turn
Hair-like state.
Continue to monitor the shape for the intersecting ring logic interface that original state on itself and opposite equip. is forwarding state in local device
During state, if still monitoring that the state of at least one intersecting ring logic interface in these intersecting ring logic interfaces is failure
State, then keeping the state for the intersecting ring logic interface that original state is blocked state is forwarding state, without switching.
Using the present embodiment, in RPR intersecting ring networking, an intersections of an equipment in two intersection equipment are preset
The original state of ring logic interface is blocked state, its original state of the equipment monitoring is the shape of the intersecting ring logic interface of forwarding state
State, and the monitoring protocol massages sent by receiving opposite equip. according to predetermined period identify and according to monitoring protocol massages
In specify the numerical value of bit, determine that original state on opposite equip. is the state of the intersecting ring logic interface of forwarding state, if this
Original state is at least one intersecting ring logic interface in all intersecting ring logic interfaces of forwarding state in end equipment and opposite equip.
State be malfunction, then the slave blocked state of intersecting ring logic interface that original state is blocked state is switched to forwarding shape
State.Using the state of intersecting ring logic interface on monitoring protocol massages actively monitoring opposite equip., monitoring protocol massages are independently of
The protocol massages for being used to be forwarded detection of data frame, transmission cycle is significantly less than data frame, so as to shorten occurring
The Transmission time of data frame when equipment fault.Also, due to the transmission cycle of monitoring protocol massages for 10 milliseconds or more
It is short, the other status monitoring of Millisecond and switching may be implemented.
In order to make it easy to understand, being provided for the embodiments of the invention RPR phase below with reference to the networking of RPR intersecting ring shown in Fig. 3
Cross ring logic interface state switching method describes in detail.
Under initial situation, arbitrarily selected in 4 intersecting ring logic interfaces that two intersect in equipment (equipment 3 and equipment 4)
One intersecting ring logic interface is arranged to blocked state, such as the intersecting ring logic interface RPR6/0/1 of the equipment 4 in Fig. 3 is arranged to
Blocked state avoids loop.
The shape that equipment 4 passes through intersecting ring the logic interface RPR3/0/1 and RPR5/0/1 of improved BFD message monitoring device 3
State.Improved BFD message is to monitor protocol massages, and BFD is common quick detection means, but it can not confirm it is monitored
The state of equipment special interface, it is therefore desirable to standard BFD message be improved, while the intersecting ring for carrying monitored equipment is patrolled
Collect the status information of mouth.A total of 32 bits of BFD message, the 0th to the 8th occupancy position for BFD message are used to refer to two
It is a intersection equipment room link detecting as a result, the 9th to the 31st be reserved bit, then can arbitrarily be selected in the from the 9th to the 31st
Two bits are used to extension standards BFD message, for example selection the 9th and the 10th respectively indicates this equipment in 1 He of RPR ring
The state of logic interface on RPR ring 2, bit position 1 indicate that intersecting ring logic interface state is normal condition, and bit position 0 indicates phase
Cross ring logic interface state is malfunction or blocked state.
In the case where no failure, equipment 4 issues the 9th and the 10th difference in the improved BFD message of equipment 3
It is " 1 " and " 0 ", it is " 1 " and " 1 ", equipment 4 respectively that equipment 3, which issues in the improved BFD message of equipment 4 the 9th and the 10th,
By the improved BFD message of interaction between equipment 3, BFD session can establish.
Improved BFD message is as standard BFD message, for example can be spaced in equipment with 10 milliseconds (or shorter)
It is sent mutually between 3 and equipment 4, failure detection time default is exactly 3*10 milliseconds (or shorter), guarantees data frame millisecond on RPR
The pretection switch of rank.
When the intersecting ring logic interface RPR5/0/1 failure of equipment 3, it is sent to the 9th in the improved BFD message of equipment 4
Position is " 1 " and " 0 " respectively with the 10th, and after equipment 4 receives, the state that will perceive other intersecting ring logic interfaces is failure
At this moment RPR6/0/1 is just switched to forwarding state from blocked state by state；
When the intersecting ring logic interface RPR3/0/1 failure of equipment 3, it is sent to the 9th in the improved BFD message of equipment 4
Position is " 0 " and " 1 " respectively with the 10th, and after equipment 4 receives, the state that will perceive other intersecting ring logic interfaces is failure
At this moment RPR6/0/1 is just switched to forwarding state from blocked state by state；
When the intersecting ring logic interface RPR4/0/1 failure of equipment 4, equipment 4 can directly monitor the intersecting ring logic interface
State be malfunction, at this moment do not need with equipment 3 interaction BFD message, directly RPR6/0/1 will be cut from blocked state
It is changed to forwarding state；
If it is have in RPR3/0/1, RPR4/0/1, RPR5/0/1 multiple states be malfunction when, processing mode is same
On.
When 3 failure of equipment, within the time of 3*10 milliseconds (or shorter), can not receive that equipment 3 sends over changes equipment 4
BFD message after, at this moment equipment 4 will enter timeout treatment process, if BFD session has been established, BFD session can be overtime disconnected
It opens, while RPR6/0/1 is switched into forwarding state from blocked state.
The RPR6/0/1 of equipment 4 is received in the improved BFD message that equipment 3 sends in forwarding state
9th and the 10th is " 1 " and " 1 " respectively, and monitors that the state of RPR4/0/1 is normal condition, then illustrates this 3 intersections
Ring logic interface has restored completely, and RPR6/0/1 is switched back into blocked state from forwarding state again at once by equipment 4.
The RPR6/0/1 of equipment 4 is received in the improved BFD message that equipment 3 sends in forwarding state
It is " 0 " that 9th and the 10th, which has 1, or monitors that the state of RPR4/0/1 is malfunction, illustrates that the intersecting ring of failure is patrolled
It collects mouth not restore completely also, RPR6/0/1 is also to maintain forwarding state in equipment 4.
By this programme, in RPR intersecting ring networking, the intersecting ring logic interface of the equipment 4 in intersection equipment is preset
The original state of RPR6/0/1 is blocked state, and equipment 4 monitors the state of intersecting ring logic interface RPR4/0/1, and passes through interaction
Improved BFD message, the state of two intersecting ring logic interfaces RPR3/0/1 and RPR5/0/1 in monitoring device 3, if monitoring
The state of at least one intersecting ring logic interface is malfunction in RPR3/0/1, RPR4/0/1, RPR5/0/1, then by RPR6/
0/1 state is switched to forwarding state from blocked state.Utilize two intersections in improved BFD message actively monitoring equipment 3
The state of ring logic interface, improved BFD message are independently of the protocol massages for being used to be forwarded detection of data frame, and
Since the transmission cycle of improved BFD message is for 10 milliseconds or shorter, the other status monitoring of Millisecond may be implemented and cut
It changes, shortens the Transmission time of the data frame in occurrence of equipment failure.
Corresponding to above method embodiment, the embodiment of the invention provides a kind of switchings of RPR intersecting ring logic interface state to fill
It sets, is applied in the networking of RPR intersecting ring in two intersection equipment, original state is where the intersecting ring logic interface of blocked state
Equipment, as shown in fig. 7, the RPR intersecting ring logic interface state switching device may include:
Monitoring modular 710, for monitoring the state for the intersecting ring logic interface that original state in the equipment is forwarding state；
Receive the monitoring protocol massages that opposite equip. is sent according to predetermined period；It identifies in the monitoring protocol massages and specifies bit
Numerical value；According to the numerical value of the designated bit position, determine that original state is that the intersecting ring of forwarding state is patrolled on the opposite equip.
Collect the state of mouth；
Switching module 720, if original state is all phases of forwarding state in the equipment and the opposite equip.
The state of at least one intersecting ring logic interface is malfunction in cross ring logic interface, then is blocked state by the original state
The state of intersecting ring logic interface is switched to forwarding state from blocked state.
It optionally, include two designated bit positions in the monitoring protocol massages, table is distinguished in described two designated bit positions
Show that original state is the state of two intersecting ring logic interfaces of forwarding state on the opposite equip.；
The monitoring modular 710, specifically can be used for:
If the numerical value of the designated bit position is specified failure numerical value, it is determined that the corresponding intersecting ring in the designated bit position
The state of logic interface is malfunction；
If the numerical value of the designated bit position is specified regime values, it is determined that the corresponding intersecting ring in the designated bit position
The state of logic interface is normal condition.
Optionally, the switching module 720, can be also used for:
It is blocked state by the original state if not receiving the monitoring protocol massages in preset interval
The state of intersecting ring logic interface is switched to forwarding state from blocked state, and the preset interval is greater than the predetermined period.
Optionally, the switching module 720, can be also used for:
It is switched to and turns from blocked state in the state by the intersecting ring logic interface that the original state is blocked state
After hair-like state, if original state is the shape of all intersecting ring logic interfaces of forwarding state on the equipment and the opposite equip.
State is normal condition, then is switched to the state for the intersecting ring logic interface that the original state is blocked state from forwarding state
Blocked state.
Optionally, described device can also include:
Module is kept, if original state is all intersecting rings of forwarding state in the equipment and the opposite equip.
The state of at least one intersecting ring logic interface is malfunction in logic interface, then keeping the original state is the phase of blocked state
The state of cross ring logic interface is forwarding state.
Using the present embodiment, in RPR intersecting ring networking, an intersections of an equipment in two intersection equipment are preset
The original state of ring logic interface is blocked state, its original state of the equipment monitoring is the shape of the intersecting ring logic interface of forwarding state
State, and the monitoring protocol massages sent by receiving opposite equip. according to predetermined period identify and according to monitoring protocol massages
In specify the numerical value of bit, determine that original state on opposite equip. is the state of the intersecting ring logic interface of forwarding state, if this
Original state is at least one intersecting ring logic interface in all intersecting ring logic interfaces of forwarding state in end equipment and opposite equip.
State be malfunction, then the slave blocked state of intersecting ring logic interface that original state is blocked state is switched to forwarding shape
State.Using the state of intersecting ring logic interface on monitoring protocol massages actively monitoring opposite equip., monitoring protocol massages are independently of
The protocol massages for being used to be forwarded detection of data frame, transmission cycle is significantly less than data frame, so as to shorten occurring
The Transmission time of data frame when equipment fault.Also, due to the transmission cycle of monitoring protocol massages for 10 milliseconds or more
It is short, the other status monitoring of Millisecond and switching may be implemented.
In order to solve problems in the prior art, the embodiment of the invention also provides a kind of network equipment, which is
An intersection equipment in RPR intersecting ring networking, as shown in figure 8, may include: processor 801 and machine readable storage medium
802, the machine readable storage medium 802 is stored with the machine-executable instruction that can be executed by the processor 801, described
Processor 801 is promoted to realize above-mentioned RPR intersecting ring logic interface state switching method by the machine-executable instruction.
Above-mentioned machine readable storage medium may include RAM (Random Access Memory, random access memory),
It also may include NVM (Non-volatile Memory, nonvolatile memory), for example, at least a magnetic disk storage.It is optional
, machine readable storage medium can also be that at least one is located remotely from the storage device of above-mentioned processor.
Above-mentioned processor can be general processor, including CPU (Central Processing Unit, central processing
Device), NP (Network Processor, network processing unit) etc.；Can also be DSP (Digital Signal Processing,
Digital signal processor), ASIC (Application Specific Integrated Circuit, specific integrated circuit),
FPGA (Field-Programmable Gate Array, field programmable gate array) or other programmable logic device are divided
Vertical door or transistor logic, discrete hardware components.
In the present embodiment, the processor of the network equipment is executable by the machine stored in read machine readable storage medium storing program for executing
Instruction, and by running the machine-executable instruction, it can be realized: in RPR intersecting ring networking, presetting two intersection equipment
In an equipment an intersecting ring logic interface original state be blocked state, its original state of the equipment monitoring be forwarding shape
The state of the intersecting ring logic interface of state, and the monitoring protocol massages sent by receiving opposite equip. according to predetermined period, know
Not and according to the numerical value for specifying bit in monitoring protocol massages, determine that original state is the intersection of forwarding state on opposite equip.
The state of ring logic interface, if on local device and opposite equip. original state be forwarding state all intersecting ring logic interfaces in extremely
The state of a few intersecting ring logic interface is malfunction, then by intersecting ring logic interface that original state is blocked state from resistance
Plug-like state is switched to forwarding state.Utilize the state of intersecting ring logic interface on monitoring protocol massages actively monitoring opposite equip., prison
The protocol massages for being used to be forwarded detection that protocol massages are independently of data frame are surveyed, transmission cycle is significantly less than data
Frame, so as to shorten the Transmission time of data frame in occurrence of equipment failure.
Corresponding to RPR intersecting ring logic interface state switching method provided by above-described embodiment, the embodiment of the present invention is provided
A kind of machine readable storage medium, is stored with machine-executable instruction, when being called and being executed by processor, realizes above-mentioned
RPR intersecting ring logic interface state switching method.
In the present embodiment, machine readable storage medium is stored with executes RPR provided by the embodiment of the present invention at runtime
The machine-executable instruction of intersecting ring logic interface state switching method, therefore can be realized: in RPR intersecting ring networking, set in advance
The original state for setting an intersecting ring logic interface of an equipment in two intersection equipment is blocked state, and the equipment monitoring is at the beginning of it
Beginning state is the state of the intersecting ring logic interface of forwarding state, and the prison sent by receiving opposite equip. according to predetermined period
Survey protocol massages, identify and according to monitoring protocol massages in specify bit numerical value, determine that original state is on opposite equip.
The state of the intersecting ring logic interface of forwarding state, if original state is all phases of forwarding state on local device and opposite equip.
The state of at least one intersecting ring logic interface is malfunction in cross ring logic interface, then is the intersection of blocked state by original state
The slave blocked state of ring logic interface is switched to forwarding state.It is patrolled using intersecting ring on monitoring protocol massages actively monitoring opposite equip.
The state of mouth is collected, monitoring protocol massages are independently of the protocol massages for being used to be forwarded detection of data frame, transmission cycle
It is significantly less than data frame, so as to shorten the Transmission time of data frame in occurrence of equipment failure.
For the network equipment and machine readable storage medium embodiment, method content as involved in it is basic
It is similar to embodiment of the method above-mentioned, so being described relatively simple, related place is referring to the part explanation of embodiment of the method
It can.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device,
For the network equipment and machine readable storage medium embodiment, since it is substantially similar to the method embodiment, so description
Fairly simple, the relevent part can refer to the partial explaination of embodiments of method.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of RPR intersecting ring logic interface state switching method, which is characterized in that be applied to Resilient Packet Ring RPR intersecting ring group
In net, original state is the equipment where the intersecting ring logic interface of blocked state, which comprises
Monitor the state for the intersecting ring logic interface that original state in the equipment is forwarding state；
Receive the monitoring protocol massages that opposite equip. is sent according to predetermined period；
Identify the numerical value that bit is specified in the monitoring protocol massages；
According to the numerical value of the designated bit position, determine that original state is the intersecting ring logic of forwarding state on the opposite equip.
The state of mouth；
If original state is at least one in all intersecting ring logic interfaces of forwarding state on the equipment and the opposite equip.
The state of intersecting ring logic interface be malfunction, then by the original state be blocked state intersecting ring logic interface state from
Blocked state is switched to forwarding state.
2. the method according to claim 1, wherein including two designated bits in the monitoring protocol massages
Position, described two designated bit positions respectively indicate two intersecting ring logics that original state on the opposite equip. is forwarding state
The state of mouth；
The numerical value according to the designated bit position determines that original state is the intersecting ring of forwarding state on the opposite equip.
The state of logic interface, comprising:
If the numerical value of the designated bit position is specified failure numerical value, it is determined that the corresponding intersecting ring logic in the designated bit position
The state of mouth is malfunction；
If the numerical value of the designated bit position is specified regime values, it is determined that the corresponding intersecting ring logic in the designated bit position
The state of mouth is normal condition.
3. the method according to claim 1, wherein the method also includes:
It is the intersection of blocked state by the original state if not receiving the monitoring protocol massages in preset interval
The state of ring logic interface is switched to forwarding state from blocked state, and the preset interval is greater than the predetermined period.
4. method according to claim 1-3, which is characterized in that it is described by the original state be obstruction shape
After the state of the intersecting ring logic interface of state is switched to forwarding state from blocked state, the method also includes:
Monitor the state for the intersecting ring logic interface that original state in the equipment is forwarding state；
Receive the monitoring protocol massages that the opposite equip. is sent according to the predetermined period；
Identify the numerical value that bit is specified in the monitoring protocol massages；
According to the numerical value of the designated bit position, determine that original state is the intersecting ring logic of forwarding state on the opposite equip.
The state of mouth；
If original state is that the state of all intersecting ring logic interfaces of forwarding state is on the equipment and the opposite equip.
The state for the intersecting ring logic interface that the original state is blocked state is then switched to obstruction shape from forwarding state by normal condition
State.
5. according to the method described in claim 4, it is characterized in that, being determined in the numerical value according to the designated bit position
On the opposite equip. after state of the original state for the intersecting ring logic interface of forwarding state, the method also includes:
If original state is at least one in all intersecting ring logic interfaces of forwarding state on the equipment and the opposite equip.
The state of intersecting ring logic interface is malfunction, then keeping the original state is the state of the intersecting ring logic interface of blocked state
For forwarding state.
6. a kind of RPR intersecting ring logic interface state switching device, which is characterized in that be applied to Resilient Packet Ring RPR intersecting ring group
In net, original state is the equipment where the intersecting ring logic interface of blocked state, and described device includes:
Monitoring modular, for monitoring the state for the intersecting ring logic interface that original state in the equipment is forwarding state；Reception pair
The monitoring protocol massages that end equipment is sent according to predetermined period；Identify the numerical value that bit is specified in the monitoring protocol massages；
According to the numerical value of the designated bit position, determine that original state on the opposite equip. is the intersecting ring logic interface of forwarding state
State；
Switching module, if original state is all intersecting ring logics of forwarding state in the equipment and the opposite equip.
The state of at least one intersecting ring logic interface is malfunction in mouthful, then patrols the intersecting ring that the original state is blocked state
The state for collecting mouth is switched to forwarding state from blocked state.
7. device according to claim 6, which is characterized in that include two designated bits in the monitoring protocol massages
Position, described two designated bit positions respectively indicate two intersecting ring logics that original state on the opposite equip. is forwarding state
The state of mouth；
The monitoring modular, is specifically used for:
If the numerical value of the designated bit position is specified failure numerical value, it is determined that the corresponding intersecting ring logic in the designated bit position
The state of mouth is malfunction；
If the numerical value of the designated bit position is specified regime values, it is determined that the corresponding intersecting ring logic in the designated bit position
The state of mouth is normal condition.
8. device according to claim 6, which is characterized in that the switching module is also used to:
It is the intersection of blocked state by the original state if not receiving the monitoring protocol massages in preset interval
The state of ring logic interface is switched to forwarding state from blocked state, and the preset interval is greater than the predetermined period.
9. according to the described in any item devices of claim 6-8, which is characterized in that the switching module is also used to:
Forwarding shape is switched to from blocked state in the state by the intersecting ring logic interface that the original state is blocked state
After state, if original state is that the state of all intersecting ring logic interfaces of forwarding state is equal on the equipment and the opposite equip.
For normal condition, then the state for the intersecting ring logic interface that the original state is blocked state is switched to obstruction from forwarding state
State.
10. device according to claim 9, which is characterized in that described device further include:
Module is kept, if original state is all intersecting ring logics of forwarding state in the equipment and the opposite equip.
The state of at least one intersecting ring logic interface is malfunction in mouthful, then keeping the original state is the intersecting ring of blocked state
The state of logic interface is forwarding state.
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| CN109067632B (en) | 2020-10-30 |
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