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Method for occupying protected resources by services in share protection and node

A technology for protecting resources and services, applied in the field of mesh networks, it can solve the problem that it is difficult to judge which one to execute first, and achieve the effect of reducing information and simplifying the processing process.

Active Publication Date: 2012-10-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the existence of service level and manual command priority, in mesh network sharing protection, it is necessary to judge both dimensions, and it is also necessary to determine which dimension to use as a benchmark. For example, for low priority services, high Level commands, and low-level commands of high-priority business, it is difficult to judge which one is executed first, which results in the need to formulate a very complex set of rules to meet the requirements

Method used

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  • Method for occupying protected resources by services in share protection and node
  • Method for occupying protected resources by services in share protection and node
  • Method for occupying protected resources by services in share protection and node

Examples

Experimental program
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Effect test

Embodiment 1

[0064] figure 2 Shown is the priority processing process when automatic switching conditions and manual commands occur at the same time, including:

[0065] At time t1, node C detects a failure, sends signal failure-service level 1 status information to node D, node D performs switching, and responds; node C performs switching after receiving the response;

[0066] At time t2, node A manually issues a protection resource locking command, and node A sends the protection resource locking command to nodes B, C, and D; after nodes C and D receive the command, the service returns to the original path.

Embodiment 2

[0068] image 3 It shows the priority processing process when the automatic switching condition is triggered for different classes of services, including:

[0069] Node A detects a fault at time t1, and sends a signal failure-service level 3. Node B performs switching after receiving it and responds, and node A performs switching after receiving the response;

[0070] At time t2, node C detects a failure, sends a signal failure-service level 1, and preempts the switching between A and B. When nodes A and B receive the status information, they return, the local service switching is preempted, and node D executes the switching.

[0071] Combining with the protocol processing principles of mesh network shared protection in this embodiment, the following state transitions of working services can be obtained, and nodes perform corresponding actions according to different states. Here, the mesh network with M:N structure is used for illustration. Each working service of the mesh ne...

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Abstract

The invention discloses a method for occupying protected resources by services in share protection and a node. The method comprises the following steps of: when the node receives an order or service state information, executing the order or responding a service state according to a priority sequence of a manual order with a first level, signal failure of the services, signal degradation of the services and a manual order with a second level, so that the protected resources are configured to the corresponding services. With the adoption of the method provided by the invention, a set of uniform priority rules is made by combining priorities of the manual orders and service states, so that information stored on the node in a mesh-like network is reduced, and a process of processing the mesh-like network is simplified.

Description

technical field [0001] The invention relates to the technical field of mesh network, in particular to a method and node for service occupation and protection resources in shared protection. Background technique [0002] The data transmission network is currently developing in the direction of more and more nodes and more and more complex topologies. Mesh has become an optical transport network (OTN), packet transport network (PTN), synchronous digital hierarchy (SDH) and other networks. ultimate goal of development. In the mesh network, linear protection can be deployed, such as 1+1 and 1:1, and ring sharing protection can also be deployed; but these methods cannot make full use of the reserved bandwidth resources of the mesh network, resulting in low overall network utilization . [0003] Shared protection in the network is a new type of general protection method. Its biggest feature is that the protected services can share protection resources in the mesh network, thereb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/56H04L45/24H04L45/28
CPCH04L47/70H04L45/28H04L41/0663H04L45/22
Inventor 富森张媛媛
Owner ZTE CORP