A method for realizing protection switching over on a grouped double looped network

Abstract

The invention is a method for realizing protection switch in group two-ring net; it belongs to computer network technology field. After initializing, the invention sets the logic state and physical state by one side of the ring net joint; the side sends application to adjoining joint and side timely; the other side and joint receive the application form adjoining joint; then carries on process to the received application, and places the application which can't be process into the hang-up queue; finally, the invention completes the switch of logic state and physical state. The invention uses side as the base operation unit, but not joint, the invention is simple and convenient.

Description

technical field [0001] The invention relates to a method for realizing protection switching on a packet double-ring network, which belongs to computer network [0002] technology field. Background technique [0003] With the gradual popularization and application of packet networks, users have higher and higher requirements for network reliability. Such as figure 1 The shown double-ring network structure provides the realization basis for the mutual protection between the double-ring network because of its topological characteristics of the double-ring network. When single-point and multi-point faults occur on the double-ring network, a mechanism is needed to process and analyze the faults on the network, and automatically complete the switching of optical fibers, so as to complete the automatic protection of online services. [0004] The requests that occur on the network are as follows, sorted by priority from high to low: [0005] When the network administrator config...

AI Technical Summary

Problems solved by technology

[0016] The disadvantage of the above prior art is that when the node returns to the idle state from the switching state, in order to protect the entire ring from repeated oscillation, it needs to enter the waiting recovery state

However, the existing method does not provide the state of waiting for recovery and how to switch between the state of waiting for recovery and other states. The nodes connected to this section of fiber will be switched and switched continuously, so that the entire network will be in constant repeated oscillation

In addition, each node on the ring network is divided into two sides, A and B. Although both sides of A and B are in the same node, their states are not completely consistent. It is difficult to realize the recovery of faulty nodes on the network at the same time as only one node. Handover and intelligent protection of services on the network

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