Network system and method for realizing network failure recovery by using shared standby router

Abstract

The embodiment of the present invention provides a network system and a method for realizing network fault recovery by using a shared backup router. to replace the target shared standby router of the first transit router; then the first access router uses the target shared standby router as an intermediate path node, and based on the address information of the target shared standby router, calculates the first mutual connection between the first access router and its corresponding The working routing path between connected routers is used as the first routing path; then the first access router sends the path information of the first routing path to other routers in the first routing path; finally, the first access router and the first routing path Other routers in the routing path forward the target data traffic according to the first routing path. In this solution, the number of shared backup routers is small, so the cost of the entire network system is low.

Description

technical field [0001] The invention relates to the technical field of communication networks, in particular to a network system and a method for realizing network fault recovery by using a shared standby router. Background technique [0002] Today, with the development of communication network technology, people's dependence on the network has increased significantly, and the impact of network failure on people's normal life cannot be ignored. Therefore, network survivability strategies are particularly important as a means to ensure the normal operation of the network; A complete network survivability strategy should include the following parts: discovery, location, declaration and recovery of network faults. Among them, the recovery of network faults is the most concerned point in the network survivability strategy. [0003] In the existing technology, with the growth of data traffic, the multi-layer network will gradually become the core of the next-generation network. F...

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Problems solved by technology

[0006] However, the number of transmission routers in the entire network system of the prior art is numerous, and each transmission router corresponds to a backup router, so the number of backup routers in the network system is numerous, and a large number of backup routers cause the entire network The system has the problem of high cost

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