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Network failure recovery method with redundancy port

A network failure and recovery method technology, applied in the field of network communication, can solve the problems of poor versatility, time-consuming and laborious, etc., and achieve the effect of overcoming damage and solving poor versatility

Active Publication Date: 2007-07-18
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a kind of network fault recovery method with redundant port, to solve the local area network with Ethernet end node redundant port in the prior art in the fault recovery process of the whole network, in order to avoid physical loop, Custom software is implemented on the switching bridge nodes and end nodes, resulting in technical problems that are time-consuming, labor-intensive, and poor in scalability and versatility

Method used

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  • Network failure recovery method with redundancy port
  • Network failure recovery method with redundancy port

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] Spanning tree protocol is a layer 2 protocol of Ethernet. It uses a dedicated algorithm to discover physical loops in the network and calculate a logical loop-free topology. Usually, the spanning tree protocol is only used to control redundant links between switching bridge nodes in the network.

[0029] The basic idea of ​​the spanning tree protocol is very simple. Trees growing in nature do not have loops, and if the network can also grow like a tree, there will be no loops. Therefore, concepts such as Root Bridge, Root Port, Designated Port, and Path Cost are defined in the Spanning Tree Protocol. The purpose is to construct a natural tree to achieve The purpose of cutting redundant loops is to realize link backup and path optimization at the same time. The algorithm used to construct this tree is called Spanning Tree Algorithm SPA (Spanning Tree Algorit...

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Abstract

This invention relates to a method for resuming network fault with redundant ports including: 1, operating and setting tree-generation protocol on a switch bridge node and a terminal node with a redundant port, 2, setting that the PRI of all end nodes is smaller than that of the switch bridge node or setting the medium access MAC address of the switch bridge node is smaller than that of the end nodes, 3, when the root port of an end node is faulty, the redundant port is changed to a root port to enter into the transmitting state by computing the generation tree operated on said end node to realize switch of redundant ports on the end nodes, further more, this invention carries out software hierarchy fault detection between end node and switch bridge node by the communication system of the generation tree.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a network failure recovery method for the whole network of a local area network with redundant ports. Background technique [0002] With the popularization of Ethernet, Ethernet is widely used in many fields. Please refer to FIG. 1 , which is a network schematic diagram of an Ethernet LAN. The local area network comprises a switching bridge node 11 and a number of end nodes 12 . The switching bridge node 11 may be a network device such as a bridge, a switch, a router, etc. to realize data exchange between a local area network and an external device or network. The end node 12 can be a terminal in the local area network, a minicomputer, or a dedicated board card with an Ethernet communication port, etc., which perform certain functions (such as completing data calculation and data communication). [0003] In order to improve availability and security, devices in the LAN are...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L29/06
Inventor 来洪清张峰
Owner DATANG MOBILE COMM EQUIP CO LTD
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