CN101547382B - Separation method for active-Standby service resource of different source and sink for grid network - Google Patents
Separation method for active-Standby service resource of different source and sink for grid network Download PDFInfo
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Abstract
Separation method for active-standby service resource of different source and sink for grid network is as follows: 1 source node service management module receives establish request of first service, triggers routing computing module for computing route; signal control module starts to establish the first service; 2 routing flooding module completes resource mark information update; 3 source nodeservice management module receives establish request of second service, triggers routing computing module for computing route according to active-standby service resource separation strategy; 4 signal control module starts to establish the second service; 5 routing flooding module completes resource mark information update. The inventive method can process active-standby service resource separation of three conditions: different source but same sink, same source but different sink, and different source and different sink; the method can be applied network combined by grid network and ring networking, or independent grid network; the method is highly reliable and stable.
Description
Technical field
The present invention relates to the separation of active-standby service resource in the grid network, the method for non-homogeneous chummage active-standby service resource separation in a kind of specifically grid network.
Background technology
Along with the fast development of Automatic Switched Optical Network Technology, it has brought the control device of a lot of automations to optical-fiber network in recent years, and for example: neighbours find automatically, automatic topological discover or the like, and the change that aspect optical network reliability, brings simultaneously also is huge.
The introducing of control plane requires ASON node (for example: based on the optical switch node of SDH) to have distributed processing power.Distributed processing power makes grid network recovery that the possibility that realizes arranged---the centralized recovery in the grid network is because its recovery time long (for minute level); And be not widely used; And distributed grid network can be with shortening to a millisecond magnitude recovery time, thereby make the practicability of grid network recovery become possibility.
Along with the fast development of Automatic Switched Optical Network Technology, the advantage of grid network is people's finding day by day in recent years.It not only has protection and the restore funcitons that approaches looped network; And the interconnectivity between its internal node is high, and business configuration is flexible; Share the formula recovery owing to adopt, its resource redundancy is few, and resource utilization is than higher.Grid network can overcome the SDH looped network intrinsic shortcoming, combine Automatic Switched Optical Network Technology simultaneously, for it has increased a lot of intelligentized functions, for example node is found automatically, automatic foundation of connection or the like.
Because the SDH looped network has obtained number of applications in communication network, the line interface transmission rate to 10Gb/s, is mainly used in long-distance backbone network, local network and metropolitan area network from 155Mb/s, 622Mb/s, 2.5Gb/s respectively.The SDH ring network is simple, and the looped network protection time is short, and reliability is high, technology maturation.Industry being is also is being researched and developed the SDH equipment of 40Gb/s speed at present.Can see that the SDH looped network will exist concurrent exhibition to go down in a very long time in future.So SDH looped network and grid network must co-exist in the network in short-term.The hybrid network of being made up of SDH looped network and grid network not only has looped network protection time weak point, the advantage that reliability is high; And also improved the interconnectivity of network to a certain extent, make that professional configuration is more flexible; Also protected simultaneously the existing network investment of operator to a certain extent.
The situation of grid network may appear passing through simultaneously in the active and standby business in the hybrid network; In this case; Can't guarantee active and standby business in the inlet of grid network or outlet all on same node, from the consideration of risk, need avoid active and standby business all to pass through same node simultaneously.The situation of non-homogeneous chummage will appear in active and standby business for grid network like this.
Active-standby service resource separation is that grid network protection restore funcitons is realized requisite precondition.For the business of homology chummage, control plane can be realized separating of active-standby service resource with mechanism through the information of series of standards agreement regulation; And, also do not realize the method for active-standby service resource separation now for the business of non-homogeneous chummage.
In the ASON that grid network is formed, the business that has protection or recover attribute possibly have following four kinds of situation according to its active and standby sourcesink difference: active and standby homology chummage, active and standby not homology but chummage, active and standby homology be also chummage not of chummage, active and standby not homology not.The source node that active and standby homology chummage refers to working traffic and subsequent use business is identical, and destination node is also identical; It is inequality that active and standby not homology but chummage refer to the source node of working traffic and subsequent use business, but destination node is identical; Active and standby homology not chummage to refer to the source node of working traffic and subsequent use business identical, but destination node is inequality; Active and standby not homology also not chummage to refer to the source node of working traffic and subsequent use business inequality, destination node is also inequality, can be referred to as the active and standby business of non-homogeneous chummage for three kinds of situation of back.The method of existing active-standby service resource separation only is limited to the first kind of situation of handling, and can't handle for three kinds of situation of back.
Summary of the invention
To the defective that exists in the prior art; The object of the present invention is to provide the method for non-homogeneous chummage active-standby service resource separation in a kind of grid network; Can handle active and standby not homology but chummage, the active and standby homology also active-standby service resource separation under three kinds of situation of chummage not of chummage, active and standby not homology not; And can be applied to also can be used for the network that grid network is formed separately in grid network and the common network of forming of ring network, the method reliability is high, good stability.
For reaching above purpose, the technical scheme that the present invention takes is:
The method of non-homogeneous chummage active-standby service resource separation in a kind of grid network is characterized in that may further comprise the steps:
Step 1: source node service management module receives the foundation request of first business; Trigger routing calculation module and calculate route; First business that obtains from the source node to the destination node each intermediate node and the link of process; The service management module can be set up request to signaling control module first business of sending after route was calculated and accomplished; The signaling control module begins the first professional distributed signaling process of setting up, and in this distributed signaling process, the signaling control module need be notified each intermediate node of process and the resource management module of destination node this first professional call number of sign; The resource management module of source node, each intermediate node and destination node identifies the resource that first business takies with this business call number, and said resource refers to link;
Step 2: the first professional resource information occupied after the professional call number sign of respectively that it is the local usefulness of the resource management module of source node, each intermediate node and destination node sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent first business to the service management module and set up completion information;
Step 3: first professional the foundation after the completion; Source node service management module receives the second professional foundation request; The same routing calculation module that triggers is calculated route; The resource that routing calculation module at first finds first business to take based on the sign first professional call number, and then carry out route based on the active-standby service resource separation strategy and calculate, second business that obtains from the source node to the destination node each intermediate node and the link of process; Said active-standby service resource separation strategy can be for node separation, link disjoint, shared risk link group separate, one or more the combination of shared risk node group in separating;
Step 4: the service management module can be set up request to signaling control module second business of sending after route was calculated and accomplished; The signaling control module begins the second professional distributed signaling process of setting up; In this distributed signaling process; The signaling control module need be notified each intermediate node of process and the resource management module of destination node this second professional call number of sign, and the resource management module of source node, each intermediate node and destination node identifies the resource that second business takies with professional call number;
Step 5: the second professional resource information occupied after the professional call number sign of respectively that it is the local usefulness of the resource management module of source node, each intermediate node and destination node sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent second business to the service management module and set up completion information;
When setting up after the foundation of working traffic elder generation, the subsequent use business, said first business is a working traffic, and second business is subsequent use business; When subsequent use professional foundation earlier, when setting up behind the working traffic, said first business is subsequent use business, and second business is a working traffic.
On the basis of technique scheme, after adopting technique scheme to set up active and standby business, the active and standby professional unified dismounting mode that adopts, professional concrete steps of removing are following:
Step 1: source node service management module is received the dismounting request of business; Trigger the signaling control module and initiate professional distributed signaling process of removing; In this distributed signaling process; Need be the resource management module of this professional call number passage of sign to each node of the whole network, the resource management module of each node will discharge the resource of this business call number sign and delete should the business call number, and said resource refers to link;
Step 2: the resource information after the resource management module of each node will discharge sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent professional dismounting completion information to the service management module.
The method of non-homogeneous chummage active-standby service resource separation in the grid network of the present invention; Can handle active and standby not homology but chummage, the active and standby homology also active-standby service resource separation under three kinds of situation of chummage not of chummage, active and standby not homology not; And can be applied in grid network and the common network of forming of ring network; Also can be used for the network that grid network is formed separately, the method reliability is high, good stability.Method of the present invention has solved the problem that can't realize non-homogeneous chummage service resource separation in the grid network automatically; Thereby can various routes be separated application of policies in the process of setting up of non-homogeneous chummage primary channel; Further strengthen the intelligent characteristic and the ease for use of network, also strengthened the flexibility of networking between grid network and the SDH looped network simultaneously.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1, individual node control plane controll block block diagram
The working traffic that Fig. 2, working traffic are set up earlier under the situation is set up
Fig. 3, working traffic are set up subsequent use professional foundation the under the situation earlier
Fig. 4, subsequent use business are set up subsequent use professional foundation the under the situation earlier
The working traffic that Fig. 5, subsequent use business are set up earlier under the situation is set up
Fig. 6, the professional dismounting
Fig. 7, non-homology but the example of active and standby service node of chummage and link disjoint
Fig. 8, non-homology but example that the active and standby professional shared risk link of chummage separates with shared risk node
Fig. 9, the different hosts of homology are equipped with the example of service node and link disjoint
Figure 10, the different hosts of homology are equipped with the example that professional shared risk link separates with shared risk node
Figure 11, the different hosts of non-homology are equipped with the example of service node and link disjoint
Figure 12, the different hosts of non-homology are equipped with the example that professional shared risk link separates with shared risk node
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
Problem to be solved by this invention how in active and standby not homology but chummage, active and standby homology chummage, active and standby not homology do not realize that the resource of active and standby business separates under these three kinds of situation of chummage yet.The control plane controll block block diagram of the individual node of the grid network that Fig. 1 relates to for the method for the invention.As shown in Figure 1, generally the control plane on the individual node by service management, route calculating, signaling control, route flood, these five functional modules of resource management constitute.These five modules are known prior art, and the hardware control unit that the method for the invention need have this block diagram function is carried.These five functional modules itself can be corresponding to a hardware entities, or a plurality of hardware entities, and this can control and method of the present invention be irrelevant flexibly according to prior art.
The method of the invention has been considered following problem:
1. can separate based on different strategies: the separation strategy of active and standby business mainly contains node separation, link disjoint, the separation of shared risk link group, shared risk node group is separated and the above combination of two or more separate modes arbitrarily;
2. need consider the situation of active and standby service reconstruction: in actual application, maybe in the active and standby business be adjusted, business also can satisfy the strategy that active and standby resource is separated after this method also need be considered adjustment.
The technical scheme that the present invention provides is only considered the control plane scheme of network node; Do not limit and (refer to transmission planar technique SDH to bottom, OTN or the like here and do not do differentiation for transmitting planar technique; That is to say and to use); Requestor for business is that UNI client or EMS/NMS do not do differentiation (promoter who refers to business does not do differentiation, that is to say and can use) here simultaneously.Just begin to set up working traffic after just beginning to set up subsequent use business or subsequent use professional foundation completion after requiring working traffic foundation to accomplish simultaneously.Situation for active and standby business is asked is not simultaneously done consideration (pointing out mainly that here this method can't be used for initiating simultaneously the situation of active and standby business, because promoter's behavior is not in this method limit of consideration).
The method of the invention concrete steps are following:
Like Fig. 2, shown in 3, working traffic is set up earlier, its process is following when setting up after the subsequent use business:
Step 1: source node service management module receives the foundation request of working traffic; Trigger routing calculation module and calculate route; Obtain working traffic from the source node to the destination node each intermediate node and the link of process; The service management module can be sent working traffic to the signaling control module and set up request after route was calculated and accomplished; The signaling control module begins the distributed signaling process that working traffic is set up, and in this distributed signaling process, the signaling control module need be notified each intermediate node of process and the resource management module (explorer) of destination node the call number of this working traffic of sign; The resource management module of source node, each intermediate node and destination node identifies the resource that working traffic takies with this business call number, and said resource refers to link;
Step 2: the working traffic resource information occupied after the professional call number sign of respectively that it is the local usefulness of the resource management module of source node, each intermediate node and destination node sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent working traffic to the service management module and set up completion information;
Step 3: after working traffic is set up and accomplished; Source node service management module receives the foundation request of subsequent use business; The same routing calculation module that triggers is calculated route; Routing calculation module is at first based on the call number resource that finds working traffic to take of sign working traffic, and then carries out route based on the active-standby service resource separation strategy and calculate, obtain subsequent use business from the source node to the destination node each intermediate node and the link of process; Said active-standby service resource separation strategy can be for node separation, link disjoint, shared risk link group separate, one or more the combination of shared risk node group in separating;
Step 4: the service management module can be sent the subsequent use professional request of setting up to the signaling control module after route was calculated and accomplished; The signaling control module begins the subsequent use professional distributed signaling process of setting up; In this distributed signaling process; The signaling control module need be notified each intermediate node of process and the resource management module of destination node the call number of this subsequent use business of sign, and the resource management module of source node, each intermediate node and destination node identifies the resource that subsequent use business takies with professional call number;
Step 5: the subsequent use professional resource information occupied after the professional call number sign of respectively that it is the local usefulness of the resource management module of source node, each intermediate node and destination node sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent subsequent use business to the service management module and set up completion information.
Like Fig. 4, shown in 5, subsequent use professional set up earlier, its process is following when setting up behind the working traffic:
Step 1: source node service management module receives the foundation request of subsequent use business; Trigger routing calculation module and calculate route; Obtain subsequent use business from the source node to the destination node each intermediate node and the link of process; The service management module can be sent the subsequent use professional request of setting up to the signaling control module after route was calculated and accomplished; The signaling control module begins the subsequent use professional distributed signaling process of setting up, and in this distributed signaling process, the signaling control module need be notified each intermediate node of process and the resource management module (explorer) of destination node the call number of this subsequent use business of sign; The resource management module of source node, each intermediate node and destination node identifies the resource that subsequent use business takies with this business call number, and said resource refers to link;
Step 2: the subsequent use professional resource information occupied after the professional call number sign of respectively that it is the local usefulness of the resource management module of source node, each intermediate node and destination node sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent subsequent use business to the service management module and set up completion information;
Step 3: subsequent use professional foundation after the completion; Source node service management module receives the foundation request of working traffic; The same routing calculation module that triggers is calculated route; Routing calculation module is at first based on the call number resource that finds subsequent use business to take of the subsequent use business of sign, and then carries out route based on the active-standby service resource separation strategy and calculate, obtain working traffic from the source node to the destination node each intermediate node and the link of process; Said active-standby service resource separation strategy can be for node separation, link disjoint, shared risk link group separate, one or more the combination of shared risk node group in separating;
Step 4: the service management module can be sent working traffic to the signaling control module and set up request after route was calculated and accomplished; The signaling control module begins the distributed signaling process that working traffic is set up; In this distributed signaling process; The signaling control module need be notified each intermediate node of process and the resource management module of destination node the call number of this working traffic of sign, and the resource management module of source node, each intermediate node and destination node identifies the resource that working traffic takies with professional call number;
Step 5: the working traffic resource information occupied after the professional call number sign of respectively that it is the local usefulness of the resource management module of source node, each intermediate node and destination node sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent working traffic to the service management module and set up completion information.
3. as shown in Figure 6, after adopting technique scheme to set up active and standby business, the active and standby professional unified method for dismounting that adopts, professional process of removing is following:
Step 1: source node service management module is received the dismounting request of business; Trigger the signaling control module and initiate professional distributed signaling process of removing; In this distributed signaling process; Need be the resource management module of this professional call number passage of sign to each node of the whole network, the resource management module of each node will discharge the resource of this business call number sign and delete should the business call number, and said resource refers to link;
Step 2: the resource information after the resource management module of each node will discharge sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent professional dismounting completion information to the service management module.
Below further specify the method for the invention through specific embodiment:
Shown in Figure 7 for homology not but active and standby service node of chummage and the incoherent example of link are the grid network that 9 nodes are set up in the example.
Shown in Figure 8 is homology but example that the active and standby professional shared risk link of chummage separates with shared risk node is the grid network that 9 nodes are set up in the example not.Wherein node 2 is shared the node risks with node 8, risk numbers 100, link 2-3 and link 5-8 shared link risk, risk numbers 200.
Shown in Figure 9 for the different hosts of homology are equipped with service node and the incoherent example of link, in the example grid network that 9 nodes are set up.
Shown in Figure 10 for the different hosts of homology are equipped with the example that professional shared risk link separates with shared risk node, in the example grid network that 9 nodes are set up.Wherein node 2 is shared the node risks with node 8, risk numbers 100, link 2-3 and link 5-8 shared link risk, risk numbers 200.
Shown in Figure 11 is non-homogeneous chummage service node and the incoherent example of link, is the grid network that 9 nodes are set up in the example.
Shown in Figure 12 is non-homogeneous chummage service node and the incoherent example of link, is the grid network that 9 nodes are set up in the example.Wherein node 2 is shared the node risks with node 8, risk numbers 100, link 2-3 and link 5-8 shared link risk, risk numbers 200.
Claims (2)
1. the method for non-homogeneous chummage active-standby service resource separation in the grid network is characterized in that may further comprise the steps:
Step 1: source node service management module receives the foundation request of first business; Trigger routing calculation module and calculate route; First business that obtains from the source node to the destination node each intermediate node and the link of process; The service management module can be set up request to signaling control module first business of sending after route was calculated and accomplished; The signaling control module begins the first professional distributed signaling process of setting up, and in this distributed signaling process, the signaling control module need be notified each intermediate node of process and the resource management module of destination node this first professional call number of sign; The resource management module of source node, each intermediate node and destination node identifies the resource that first business takies with this business call number, and said resource refers to link and node;
Step 2: the first professional resource information occupied after the professional call number sign of respectively that it is the local usefulness of the resource management module of source node, each intermediate node and destination node sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent first business to the service management module and set up completion information;
Step 3: first professional the foundation after the completion; Source node service management module receives the second professional foundation request; The same routing calculation module that triggers is calculated route; The resource that routing calculation module at first finds first business to take based on the sign first professional call number, and then carry out route based on the active-standby service resource separation strategy and calculate, second business that obtains from the source node to the destination node each intermediate node and the link of process; Said active-standby service resource separation strategy is that node separation, link disjoint, shared risk link group separate, one or more the combination of shared risk node group in separating;
Step 4: the service management module can be set up request to signaling control module second business of sending after route was calculated and accomplished; The signaling control module begins the second professional distributed signaling process of setting up; In this distributed signaling process; The signaling control module need be notified each intermediate node of process and the resource management module of destination node this second professional call number of sign, and the resource management module of source node, each intermediate node and destination node identifies the resource that second business takies with the second professional professional call number;
Step 5: the second professional resource information occupied after the professional professional call number sign of respectively that it is the local usefulness of the resource management module of source node, each intermediate node and destination node second sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then; After routing database upgraded completion, the signaling control module of source node was sent second business to the service management module and is set up completion information;
When setting up after the foundation of working traffic elder generation, the subsequent use business, said first business is a working traffic, and second business is subsequent use business; When subsequent use professional foundation earlier, when setting up behind the working traffic, said first business is subsequent use business, and second business is a working traffic.
2. the method for non-homogeneous chummage active-standby service resource separation in the grid network as claimed in claim 1 is characterized in that: after adopting technique scheme to set up active and standby business, and the active and standby professional unified dismounting mode that adopts, professional concrete steps of removing are following:
Step 1: source node service management module is received the dismounting request of business; Trigger the signaling control module and initiate professional distributed signaling process of removing; In this distributed signaling process; Need be communicated to the resource management module on each node of the whole network to this professional call number of sign, the resource management module of each node will discharge the resource of this business call number sign and delete should the business call number, and said resource refers to link and node;
Step 2: the resource information after the resource management module of each node will discharge sends to the local route module that floods; Each route module that floods is accomplished resource identification information and is upgraded; The route module that floods is carried out the whole network through its intrinsic information from flooding mechanism with this information and is flooded; Notify each node of the whole network; Route floods module according to the result notification routing calculation module completion routing database renewal of returning then, and after routing database upgraded completion, the signaling control module of source node was sent professional dismounting completion information to the service management module.
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| CN107395422B (en) * | 2017-07-27 | 2020-10-20 | 苏州浪潮智能科技有限公司 | Multi-frame management system |
| CN108337174B (en) * | 2017-12-27 | 2020-10-23 | 瑞斯康达科技发展股份有限公司 | Method and device for searching end-to-end service route of transmission network and storage medium |
| CN111342889B (en) * | 2020-03-06 | 2022-01-07 | 中国电力科学研究院有限公司 | Risk separation protection path searching method and system for safety and stability control type service |
| CN112231465A (en) * | 2020-10-20 | 2021-01-15 | 南方电网数字电网研究院有限公司 | Service data resource separation method and device, computer equipment and storage medium |
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