CN103888280B - A kind of cross-domain path status machinery of consultation and node apparatus - Google Patents
A kind of cross-domain path status machinery of consultation and node apparatus Download PDFInfo
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- CN103888280B CN103888280B CN201210558890.9A CN201210558890A CN103888280B CN 103888280 B CN103888280 B CN 103888280B CN 201210558890 A CN201210558890 A CN 201210558890A CN 103888280 B CN103888280 B CN 103888280B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of cross-domain path status machinery of consultation and devices, avoid the occurrence of both ends node path on cross-domain path and select inconsistent situation.The described method includes: the path state information that the cross-domain backup interlink node on the Protection path across adjacent two domain is sent according to end node of the path status and/or the Protection path of this nodal test on adjacent two domain; determine that Local Path State, the path state information that the end node is sent indicate the path status that current end node detects；The cross-domain backup interlink node sends the path state information for indicating the Local Path State based on the Local Path State to end node.The node apparatus includes: Local Path State determining module and sending module.Guarantee the consistency of cross-domain Path selection, using the application method and apparatus so that cross-domain service correctly can be protected and restore.
Description
Technical field
The present invention relates to the communications fields, and in particular to a kind of cross-domain path status machinery of consultation and node apparatus.
Background technique
Currently in ITU-T(International Telecommunication Union's telecommunication standardsization tissue) protectioninterworking(guarantor
Protect intercommunication) in draft standard, in the case of discussing that interlink node breaks down, it is switched to corresponding Protection path and carries out business
Transmission.As shown in Figure 1, domain 1 includes node A, B, C, domain 2 includes node B, C, D, and domain 1 and domain 2 are adjacent domains, and node B and C are
Cross-domain interlink node.Solid line connecting line between Fig. 1 interior joint is operating path, and the dashed connection line between node is protection
Path.Under normal circumstances, business (heavy line in figure) selects cross-domain operating path A-B-D transmission；When cross-domain interlink node B occurs
When failure, node A and D are switched to Protection path A-C-D and send and receive business, as shown in Figure 2.If in Protection path A-C-
During D sends and receives business, Protection path C-D also breaks down, since 1 interior nodes A of domain not can know that C-D link
It breaks down, and for node D, since it detects C-D link failure, then still selection original operating path A-B-D is sent out
Business is sent and receives, as shown in figure 3, to cross-domain path both ends node path selection inconsistence problems occur.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of cross-domain path status machinery of consultation and devices, avoid the occurrence of
Both ends node path selects inconsistent situation on cross-domain path.
In order to solve the above technical problems, the present invention provides a kind of cross-domain path status machineries of consultation, comprising:
Cross-domain backup interlink node on Protection path across adjacent two domain according to the path status of this nodal test and/or
The path state information that end node of the Protection path on adjacent two domain is sent, determines Local Path State, described
The path state information that end node is sent indicates the path status that current end node detects；
The cross-domain backup interlink node is based on the Local Path State and sends the expression local path to end node
The path state information of state.
Further, the road that the path state information and the cross-domain backup interlink node that the end node is sent are sent
Diameter status information is carried in state negotiation packet.
Further, the cross-domain backup interlink node is according to the path status and/or the end node of this nodal test
The path state information of transmission, determines Local Path State, comprising: the cross-domain backup interlink node is according to this nodal test
The path state information that path status and/or the end node are sent selects the path status of highest priority as local road
Diameter state.
Further, the cross-domain backup interlink node is according to the path status and/or the end node of this nodal test
The path state information of transmission selects the path status of highest priority as Local Path State, comprising:
The cross-domain backup interlink node is sent according to the path status of this nodal test and one or two end node
Indicate current end node detection path status path state information, select the path status of highest priority as local
Path status；Or
The cross-domain backup interlink node selects the path status of highest priority according to the path status of this nodal test
As Local Path State；Or
The road for indicating current end node detection that the cross-domain backup interlink node is sent according to one or two end node
The path state information of diameter state selects the path status of highest priority as Local Path State.
Further, the cross-domain backup interlink node is based on the Local Path State to described in end node transmission expression
The path state information of Local Path State, comprising:
If the path status priority of this cross-domain backup interlink node of the cross-domain backup interlink node judgement be lower than or
Equal to the priority of end node path status, then send to the end node without request (NR) status information, if judgement this across
The path status priority of domain backup interlink node is higher than the priority of end node path status, then sends table to the end node
Show the information of the cross-domain backup interlink node Local Path State.
Further, the cross-domain backup interlink node is based on the Local Path State to described in end node transmission expression
The path state information of Local Path State, comprising: send out the information for indicating this cross-domain backup interlink node Local Path State
Give end node.
Further, the method also includes: business is in the cross-domain Protection path transmission process, end node reception institute
The path state information for the expression Local Path State that cross-domain backup interlink node is sent is stated, the cross-domain backup is mutual
The priority of the path status of the Local Path State and this endpoint of interlink point selects the higher state of priority to execute operation.
Further, the operation includes any one of following operation: not switching, switches, switchback.
In order to solve the above technical problems, the present invention also provides a kind of node apparatus realizing cross-domain path status and negotiating,
The node apparatus is the cross-domain backup interlink node on the Protection path across adjacent two domain, and the node apparatus includes: this
Ground path status determining module and sending module, in which:
The Local Path State determining module, for according to this nodal test path status and/or the protection road
The path state information that end node of the diameter on adjacent two domain is sent determines that Local Path State, the end node are sent
Path state information indicate the path status that detects of current end node；
The sending module, the Local Path State for being determined based on Local Path State determining module, Xiang Duan
Node sends the path state information for indicating the Local Path State.
Further, the node apparatus further includes receiving module, and the receiving module is for receiving the Protection path
The state negotiation packet that end node on adjacent two domain is sent carries expression in the state negotiation packet and works as front end
The path state information for the path status that nodal test arrives；
The sending module, for sending the road for indicating the Local Path State to end node by state negotiation packet
Diameter status information.
Further, path status and/or the end of the Local Path State determining module according to this nodal test
The path state information that node is sent, determines Local Path State, comprising: the Local Path State determining module is according to this section
The path state information that the path status and/or the end node of point detection are sent, selects the path status of highest priority to make
For Local Path State.
Further, path status and/or the end of the Local Path State determining module according to this nodal test
The path state information that node is sent, selects the path status of highest priority as Local Path State, comprising:
The Local Path State determining module is according to the path status of this nodal test and one or two end node
Transmission indicate current end node detection path status path state information, select the path status of highest priority as
Local Path State；Or
The Local Path State determining module selects the path of highest priority according to the path status of this nodal test
State is as Local Path State；Or
The Local Path State determining module is detected according to the expression current end node that one or two end node is sent
Path status path state information, select the path status of highest priority as Local Path State.
Further, the sending module is based on the Local Path State and sends the expression local path to end node
The path state information of state, comprising: if the path status of this cross-domain backup interlink node of sending module judgement is preferential
Grade is less than or equal to the priority of end node path status, then sends to the end node without request (NR) status information, judgement
If the path status priority of this cross-domain backup interlink node is higher than the priority of end node path status, to the end segment
Point sends the information for indicating the cross-domain backup interlink node Local Path State.
Further, the sending module is based on the Local Path State and sends the expression local path to end node
The path state information of state, comprising: the sending module will indicate the letter of this cross-domain backup interlink node Local Path State
Breath is sent to end node.
The application carries out cross-domain state negotiation between passing through node, is being detected and/or is being led to by cross-domain backup interlink node
After accusing the node both ends link state, using the state of Protection path corresponding in adjacent domains as a local state input because
Local link condition is advertised to other end nodes on domain by element, to guarantee that two end nodes are switched to same path on cross-domain path
On send and receive business, to guarantee the consistency of cross-domain Path selection, so that cross-domain service correctly can be protected and restore.
Detailed description of the invention
Business transmits schematic diagram when Fig. 1 is prior art normal condition；
Business transmits schematic diagram when Fig. 2 is prior art interlink node failure；
Fig. 3 is that business transmits inconsistent schematic diagram in the prior art；
Fig. 4 is 1 flow chart of the embodiment of the present invention；
Fig. 5 is 2 flow chart of the embodiment of the present invention；
Fig. 6 is that 2 correct switch of the embodiment of the present invention protects schematic diagram；
Fig. 7 is 4 apparatus module composed structure schematic diagram of the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Embodiment 1
The present embodiment describes a kind of cross-domain path status machinery of consultation, as shown in Figure 4, comprising the following steps:
Step 101, the cross-domain backup interlink node on Protection path across adjacent two domain is according to the path of this nodal test
The path state information that the end node of state and/or the Protection path on adjacent two domain is sent, determines local path
State, the path state information that the end node is sent indicate the path status that current end node detects；
The path state information that the path state information and the cross-domain backup interlink node that end node is sent are sent is equal
It is carried in state negotiation packet.State negotiation packet can use existing state negotiation mechanism, such as APS(Automatic
Protection Switched, automatic protection switching) or PSC(Protection StateCoordination, guard mode
Negotiate).
Path state information is used to indicate whether path breaks down.
In a preferred embodiment, cross-domain backup interlink node is according to the path status of this nodal test and/or described
End node send path state information, select the path status of highest priority as Local Path State, specifically include with
Under several situations:
(1) cross-domain backup interlink node is sent according to the path status of this nodal test and one or two end node
The path state information for indicating the path status of current end node detection selects the path status of highest priority as local road
Diameter state；Or
(2) path status (including path in adjacent two domain) of the cross-domain backup interlink node according to this nodal test, choosing
The highest path status of priority is selected as Local Path State；Or
(3) the cross-domain backup interlink node indicates what current end node detected according to what one or two end node was sent
The path state information of path status selects the path status of highest priority as Local Path State.
Step 102, the cross-domain backup interlink node is based on the Local Path State to described in end node transmission expression
The path state information of Local Path State.
Cross-domain backup interlink node sends the path state information of this node to cross-domain two end node of Protection path respectively, packet
Include following two situation:
Situation one:
The information for indicating this cross-domain backup interlink node Local Path State is directly sent to by cross-domain backup interlink node
The end node；
Situation two:
If the path status priority of this cross-domain backup interlink node of cross-domain backup interlink node judgement is less than or equal to
The priority of the end node path status then sends NR(NoneRequest, no request to the end node) status information,
If the path status priority of this cross-domain backup interlink node of judgement is higher than the priority of end node path status, to the end
Node sends the information for indicating the cross-domain backup interlink node Local Path State.
For end node, no matter above situation one or situation two, business is transmitted across in above-mentioned cross-domain Protection path
Cheng Zhong, the path state information for the expression Local Path State that the cross-domain backup interlink node of end node reception is sent are more cross-domain
The priority of the path status of the Local Path State and this endpoint of backup interlink node selects the higher state of priority to execute
Operation.Aforesaid operations include it is following operation any one: do not switch, switch, switchback.In addition to the operation listed herein, however not excluded that
End node executes other operations.In addition, the identical operation of but movement different from aforesaid operations title is still in the scope of the present invention
Within.
Method through this embodiment makes cross-domain two end node of path selection unified path carry out sending and receiving business, protects
Demonstrate,prove the both ends node switches consistency of cross-domain Protection path.
Embodiment 2
The present embodiment be a preferred embodiment, with cross-domain backup interlink node in conjunction with this nodal test path status and
The path status of end node carries out specifically method in embodiment 1 for determining Local Path State and above situation two
It is bright.
Protection path is configured in each domain for cross-domain operating path first, Protection path is spliced into one jointly in those domains
A cross-domain Protection path.Cross-domain associated nodes on across adjacent domains Protection path are cross-domain backup associated nodes.Cross-domain standby
The association of cross-domain Protection path not same area in Protection path of part associated nodes configuration Jing Guo the cross-domain backup associated nodes is closed
System.The method is as shown in Figure 5, comprising:
Step 201, two end node of path (two end segments of the Protection path on adjacent two domain of Protection path approach in domain
Point) path status situation in the periodic detection domain on path, it includes whether to occur in link failure and the domain on path mutually
Whether interlink point breaks down, if link failure occurs for path in domain, and interlink node failure occurs, executes step 202, such as
Only link failure, or only interlink node failure occur fruit for path in domain, then start protection domain in；
Path includes operating path and Protection path in domain described herein.
Art methods realization can be used in protection in domain, and repeats no more herein.
Step 202, two end node of path to cross-domain backup associated nodes sends state negotiation packet in domain, carries in message
The information for the path status that two end node of path respectively detects in domain；
For end node in any domain, the status information for the highest priority which is locally detected is sent to
Cross-domain backup interlink node.
Two end node of path periodically sends state negotiation packet to cross-domain backup associated nodes in domain.
The present embodiment is illustrated by taking two-end-point as an example, if wherein some end segment point failure, may also only one
End node sends state negotiation packet.A kind of extreme situation is two end nodes all failures, then cross-domain backup associated nodes will
It can not receive the state negotiation packet of end node transmission.
Step 203, after cross-domain backup associated nodes receive the path state information that two end node of path is sent in domain, knot
The path status for closing this nodal test selects the path status of highest priority as the path status of this node；
Specifically, when backup interlink node receives the state negotiation packet that the peer node in each domain sends over, root
According to the state for corresponding to Protection path in the link state and adjacent domains on each domain, select the state of a highest priority as this
Ground path status.It is the Protection path with incidence relation that Protection path is corresponded in adjacent domains described herein.
Step 204, cross-domain backup associated nodes judge the path status priority of two end node of path and sheet in domain respectively
Node path priority of status executes step if this node path status priority is higher than distant-end node path status priority
Rapid 205, if this node path status priority is less than or equal to distant-end node path status priority, execute step 206；
Step 205, the information for indicating this node path status is sent to corresponding distant-end node, executes step 207；
Step 206, NR status information is sent to corresponding distant-end node, executes step 207；
In above-mentioned steps 205 and 206, the expressions local road such as information and NR status information of this node path status is indicated
The path state information of diameter state is all made of the transmission of state negotiation packet, in the present embodiment, completes association based on APS negotiation mechanism
Quotient.
In other preferred embodiments, step 204 and step 206 can also be saved, directly sending to end node indicates cross-domain
The information of backup interlink node Local Path State.It can complete to negotiate based on PSC negotiation mechanism at this time.
Step 207, two end node of path combines originally according to the path state information that cross-domain backup associated nodes are sent in domain
The path status of nodal test selects the higher state of priority to execute operation.
Aforesaid operations include any one of following operation: not switching, switch, switchback.
Specifically, when the peer node on adjacent two domain receives the path state information that cross-domain backup interlink node is sent
Afterwards, it is compared with the priority of local path status detected, if the path status that cross-domain backup interlink node is sent
Priority is greater than the priority of local path status detected, then the path status of cross-domain backup interlink node is selected to execute behaviour
Make；Otherwise, operation is executed according to the path status being locally detected.The destination path of service switching depends on determining state,
For example, the state instruction working path failure, then it can be by service switching to Protection path, the state instruction Protection path failure,
It then can be by service switchback to operating path.
For network shown in Fig. 3, for cross-domain operating path A-B-D, a corresponding cross-domain protection is configured
Protection path A-C in two domains is bound or is associated with C-D on cross-domain backup interlink node C by path A-C-D.Across
In the case of interconnecting host node B failure on the operating path of domain, cross-domain service protection, service switching to the operating path are carried out
On cross-domain Protection path, and the Protection path C-D in cross-domain Protection path domain 2 also breaks down, then carries out cross-domain service
Protection and the main process restored:
Two end node A, the D in cross-domain path carry out the state-detection of respective domain upper pathway, and end node is according to local detection
State outcome selects the state of highest priority to be sent on the peer node C of Protection path in domain as Local Path State；
For situation shown in Fig. 3, in the case of interlink node B and link C-D break down simultaneously, then node A detects operating path and goes out
Existing SF-W(operating path signal fault), and for node D, detect that SF (Signal all occur in operating path and Protection path
Failure, signal fault) information, due to SF-P(Protection path signal fault) priority is higher than SF-W, then D can select highest
Priority state SF-P is sent to backup interlink node C, and A then sends SF-W state and gives C node；
It, will be in adjacent domains after backup interlink node C receives the state negotiation packet that cross-domain end node A, D are sended over
Corresponding Protection path state is also used as an input factor, and the highest state of one priority of status of reselection is as local
Path status detects that Protection path C-D breaks down, and receive the SF-W and section of node A transmission respectively for node C
The SF-P that point D is sent, selects SF-P as Local Path State；
Backup interlink node C again compares local priority of status with the priority of status to come transmitted by distant-end node
Compared with if Local Path State priority selects local path shape greater than the path status priority that distant-end node sends over
State information is sent to corresponding distant-end node by states negotiation packets such as APS or PSC, otherwise, selects the notice of NR status information
To corresponding distant-end node；Since the path status of node C is SF-P, SF-P is sent to node A, and to node D
Transmission is NR status information；
After node A, D are respectively received the state negotiation packet that backup interlink node C is sended over, respectively by the distal end shape
State priority (i.e. the path status priority of node C) is compared with being locally detected priority of status, for node A local detection
State is SF-W, and node C sends over SF-P, so node A selection SF-P executes switchback operation, i.e., due to Protection path event
Barrier node A can select to be switched to operating path；And for node D, then SF-P, C node send over NR to local detection
Status information, so node D can also select SF-P to carry out switchback operation, same selection is switched to operating path, at this time node A and
Node D receives or sends business from former operating path, as shown in Figure 6, it is ensured that the consistency of both ends node transmitting path.
It should be noted that the failure of interlink node B may only result in partial service congestion herein, operating path is switched back into
All service fails may not be will lead to.
Embodiment 3
The present embodiment description realizes that the node apparatus of 1 method of embodiment, the node include being located at the protection across adjacent two domain
Cross-domain backup interlink node on path, as shown in fig. 7, the node apparatus includes Local Path State determining module 301 and sends
Module 302, in which:
The Local Path State determining module 301, for according to this nodal test path status and/or the protection
The path state information that end node of the path on adjacent two domain is sent determines Local Path State, the end node hair
The path state information sent indicates the path status that current end node detects；
The sending module 302, the local path shape for being determined based on Local Path State determining module 301
State sends the path state information for indicating the Local Path State to end node.
In a preferred embodiments, above-mentioned node apparatus further includes receiving module 303, and the receiving module 303 is for connecing
The state negotiation packet that end node of the Protection path on adjacent two domain is sent is received, is taken in the state negotiation packet
Path state information with the path status that expression current end node detects；Above-mentioned sending module is used to negotiate by state
Message sends the path state information for indicating the Local Path State to end node.
In a preferred embodiments, Local Path State determining module 301 according to the path status of this nodal test and/
Or the path state information that the end node is sent, select the path status of highest priority as Local Path State.Specifically
Including one of following any situation:
Local Path State determining module 301 is sent out according to the path status of this nodal test and one or two end node
That send indicates the path state information of the path status of current end node detection, selects the path status of highest priority as this
Ground path status；
Local Path State determining module 301 selects the path of highest priority according to the path status of this nodal test
State is as Local Path State；
Local Path State determining module 301 indicates what current end node detected according to what one or two end node was sent
The path state information of path status selects the path status of highest priority as Local Path State.
In a preferred embodiments, sending module 302 can send table to end node using one of following any way
Show the path state information of the Local Path State:
If the path status priority of this cross-domain backup interlink node of the judgement of sending module 302 is less than or equal to end node
The priority of path status then sends NR status information to the end node, if the road of this cross-domain backup interlink node of judgement
Diameter priority of status is higher than the priority of end node path status, then sending to the end node indicates the cross-domain backup interconnection
The information of node Local Path State；
The information for indicating this cross-domain backup interlink node Local Path State is sent to end node by sending module 302.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware is completed, and described program can store in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, one or more integrated circuits can be used also to realize in all or part of the steps of above-described embodiment.Accordingly
Ground, each module/unit in above-described embodiment can take the form of hardware realization, can also use the shape of software function module
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
Certainly, the invention may also have other embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (14)
1. a kind of cross-domain path status machinery of consultation, comprising:
Cross-domain backup interlink node on Protection path across adjacent two domain is according to the path status of this nodal test and/or described
What end node of the Protection path on adjacent two domain was sent indicates the path status of the path status of current end node detection
Information determines that Local Path State, the path state information that the end node is sent indicate the path that current end node detects
State；
The cross-domain backup interlink node is based on the Local Path State and sends the expression Local Path State to end node
Path state information.
2. the method as described in claim 1, it is characterised in that:
The path state information that the path state information and the cross-domain backup interlink node that the end node is sent are sent is equal
It is carried in state negotiation packet.
3. method according to claim 1 or 2, it is characterised in that:
The path status that the cross-domain backup interlink node is sent according to the path status of this nodal test and/or the end node
Information determines Local Path State, comprising:
The path status that the cross-domain backup interlink node is sent according to the path status of this nodal test and/or the end node
Information selects the path status of highest priority as Local Path State.
4. method as claimed in claim 3, it is characterised in that:
The path status that the cross-domain backup interlink node is sent according to the path status of this nodal test and/or the end node
Information selects the path status of highest priority as Local Path State, comprising:
The table that the cross-domain backup interlink node is sent according to the path status of this nodal test and one or two end node
The path state information for showing the path status of current end node detection, selects the path status of highest priority as local path
State；Or
The cross-domain backup interlink node according to the path status of this nodal test, select the path status of highest priority as
Local Path State；Or
The path shape for indicating current end node detection that the cross-domain backup interlink node is sent according to one or two end node
The path state information of state selects the path status of highest priority as Local Path State.
5. the method as described in claim 1, it is characterised in that:
The cross-domain backup interlink node is based on the Local Path State and sends the expression Local Path State to end node
Path state information, comprising:
If the path status priority of this cross-domain backup interlink node of cross-domain backup interlink node judgement is less than or equal to
The priority of end node path status is then sent to the end node without request (NR) status information, if judgement is originally cross-domain standby
The path status priority of part interlink node is higher than the priority of end node path status, then sending to the end node indicates institute
State the information of cross-domain backup interlink node Local Path State.
6. the method as described in claim 1, it is characterised in that:
The cross-domain backup interlink node is based on the Local Path State and sends the expression Local Path State to end node
Path state information, comprising:
The information for indicating this cross-domain backup interlink node Local Path State is sent to end node.
7. such as method described in claim 5 or 6, it is characterised in that:
The method also includes: for business in the cross-domain Protection path transmission process, cross-domain backup described in end node reception is mutual
The path state information for the expression Local Path State that interlink point is sent, the local of the cross-domain backup interlink node
The priority of the path status of path status and this endpoint, selects the higher state of priority to execute operation.
8. the method for claim 7, it is characterised in that:
The operation includes any one of following operation: not switching, switches, switchback.
9. a kind of node apparatus realizing cross-domain path status and negotiating, the node apparatus are positioned at the protection road across adjacent two domain
Cross-domain backup interlink node on diameter, the node apparatus include: Local Path State determining module and sending module, in which:
The Local Path State determining module, for being existed according to the path status and/or the Protection path of this nodal test
The path state information that end node on adjacent two domain is sent determines Local Path State, the road that the end node is sent
Diameter status information indicates the path status that current end node detects；
The sending module, the Local Path State for being determined based on Local Path State determining module, to end node
Send the path state information for indicating the Local Path State.
10. node apparatus as claimed in claim 9, it is characterised in that:
The node apparatus further includes receiving module, and the receiving module is for receiving the Protection path in adjacent two domain
On the state negotiation packet that sends of end node, the road for indicating that current end node detects is carried in the state negotiation packet
The path state information of diameter state；
The sending module, for sending the path shape for indicating the Local Path State to end node by state negotiation packet
State information.
11. the node apparatus as described in claim 9 or 10, it is characterised in that:
The path that the Local Path State determining module is sent according to the path status of this nodal test and/or the end node
Status information determines Local Path State, comprising:
The path that the Local Path State determining module is sent according to the path status of this nodal test and/or the end node
Status information selects the path status of highest priority as Local Path State.
12. node apparatus as claimed in claim 11, it is characterised in that:
The path that the Local Path State determining module is sent according to the path status of this nodal test and/or the end node
Status information selects the path status of highest priority as Local Path State, comprising:
The Local Path State determining module is sent according to the path status of this nodal test and one or two end node
Indicate current end node detection path status path state information, select the path status of highest priority as local
Path status；Or
The Local Path State determining module selects the path status of highest priority according to the path status of this nodal test
As Local Path State；Or
The road for indicating current end node detection that the Local Path State determining module is sent according to one or two end node
The path state information of diameter state selects the path status of highest priority as Local Path State.
13. node apparatus as claimed in claim 9, it is characterised in that:
The sending module sends the path shape for indicating the Local Path State based on the Local Path State to end node
State information, comprising:
If the path status priority of this cross-domain backup interlink node of the sending module judgement is less than or equal to end node road
The priority of diameter state is then sent to the end node without request (NR) status information, if this cross-domain mutual interlink of backup of judgement
The path status priority of point is higher than the priority of end node path status, then sending to the end node indicates described cross-domain standby
The information of part interlink node Local Path State.
14. node apparatus as claimed in claim 9, it is characterised in that:
The sending module sends the path shape for indicating the Local Path State based on the Local Path State to end node
State information, comprising:
The information for indicating this cross-domain backup interlink node Local Path State is sent to end node by the sending module.
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| CN201210558890.9A CN103888280B (en) | 2012-12-20 | 2012-12-20 | A kind of cross-domain path status machinery of consultation and node apparatus |
| PCT/CN2013/089422 WO2014094575A1 (en) | 2012-12-20 | 2013-12-13 | Cross-domain path state negotiation method and node device |
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| CN201210558890.9A CN103888280B (en) | 2012-12-20 | 2012-12-20 | A kind of cross-domain path status machinery of consultation and node apparatus |
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| CN105227461B (en) * | 2014-06-26 | 2020-03-10 | 中兴通讯股份有限公司 | Method for acquiring cross-domain separation path and path calculation unit |
| TWI710231B (en) * | 2020-02-27 | 2020-11-11 | 中華電信股份有限公司 | Path quality report method crossed over multiple centralized control plane |
| CN111565145B (en) * | 2020-04-09 | 2022-07-01 | 烽火通信科技股份有限公司 | Cross-domain path protection method and system |
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| CN102420753A (en) * | 2011-11-28 | 2012-04-18 | 中兴通讯股份有限公司 | Automatic protection switching (APS) protocol state transition method and device |
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| CN102223302B (en) * | 2011-06-14 | 2015-07-22 | 杭州华三通信技术有限公司 | Event processing method and equipment based on PSC (Protection State Coordination) message |
| CN103634134B (en) * | 2012-08-24 | 2018-07-24 | 中兴通讯股份有限公司 | Cross-domain protection intercommunication method and system |
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| US7855953B2 (en) * | 2005-10-20 | 2010-12-21 | Cisco Technology, Inc. | Method and apparatus for managing forwarding of data in an autonomous system |
| CN102571530A (en) * | 2010-12-16 | 2012-07-11 | 中兴通讯股份有限公司 | Inter-domain link status information processing method and PCE |
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| CN103888280A (en) | 2014-06-25 |
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