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A hybrid ring network protection method and system based on shared channels
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A ring network and protection tunnel technology, which is applied in the transmission system, digital transmission system, data exchange network, etc., can solve the problem of slow switching and achieve the effect of fast switching
Active Publication Date: 2017-12-26
湖南磐云数据有限公司
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[0007] The technical problem to be solved by the present invention is to provide a hybrid ring network protection method and system based on shared channels, and at the same time solve the problems of non-optimal path transmission in existing wrapping protection and slow switching in Steering protection
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Embodiment 1
[0050] The ring network protection method described in this embodiment, such as Figure 4 As shown, the following steps are taken:
[0051] Step 1, with the lower ring node of the business on the ring as the destination node, respectively configure the working tunnel and the protection tunnel of the ring network loopback (wrapping) protection and the working tunnel and the protection tunnel of the directional (steering) protection;
[0052] When the cross-ring service is transmitted on the ring, the two endpoints of the service on the ring are respectively called the service uplink node and the downlink node. For example, figure 1 As shown, for service 1, node A is the upper link node, and node D is the lower link node.
[0053] Specifically, take the next ring node of the on-ring service as the destination node, configure a first tunnel from the first adjacent node of the destination node to the destination node in the clockwise direction, and configure a tunnel from the des...
Embodiment 2
[0075] This embodiment provides a possible processing step, such as Image 6 shown, including the following steps:
[0076] Step 101, configuring a working tunnel and a protection tunnel for the business downlink node on the ring;
[0077] Step 102, periodically sending link state detection messages on each link;
[0078] Step 103, judging whether the link status has changed, if yes, execute step 104, otherwise execute step 105;
[0079] Step 104, generate a state change notification message, send it to other nodes on the ring, and execute step 106;
[0080] Step 105, periodically sending a link state detection message, returning to step 102;
[0081] Step 106, the nodes on the ring detect or receive other state change notification messages;
[0082] Step 1061, judging whether the normal state has changed to a fault state, if yes, execute step 1062, otherwise execute step 1064;
[0083] Step 1062, perform wrapping switching on the faulty adjacent node, and execute step 1063...
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Abstract
The invention discloses a hybridring network protection method and system based on a shared channel, which simultaneously solves the problems of non-optimal path transmission in existing loopback protection and slow switching in directional protection. The method includes: taking the lower ring node of the business on the ring as the destination node, respectively configuring the working tunnel and the protection tunnel of the ring networkloopback protection and the working tunnel and the protection tunnel of the directional protection; each node on the ring detects and communicates with adjacent nodes link status; when a link status change is detected, a status change notification message is sent to other nodes on the ring; a node that detects a link status change or receives the status change notification message performs ring network ring first. Judgment or judgment and processing of protection switching, and then judgment or judgment and processing of ring network directional protection switching. This method has the advantages of fast switching and transmission along the optimal path.
Description
technical field [0001] The invention relates to the technical field of ring network protection, in particular to a hybrid ring network protection method and system based on a shared channel. Background technique [0002] Aiming at the problems of heavy configuration workload and low switching performance in the ring network protection scheme of the G.8132 standard, a ring network protection scheme based on shared channels has been proposed, including wrapping (loopback) ring network protection based on shared channels scheme and a steering (directional) ring network protection scheme based on a shared channel. [0003] Among them, the wrapping ring network protection scheme based on the shared channel is to establish multiple multipoint-to-point (MP2P) shared paths on a ring. The business of the node going out of the ring. When the network is normal, all clockwise services that go out of the ring at the same node share the same clockwise ring working tunnel, and all counte...
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