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Fast re-routing method for shared multi-port transmitting link

A port sharing and port technology, applied in the field of communication transmission, to improve reliability and meet the needs of real-time business

Inactive Publication Date: 2009-11-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to solve the problem of backup protection when the message is transmitted through the transmission ring network in the prior art, realize fast rerouting and fast switching when the link fails, meet the real-time business needs of the user, and save the operating cost of the service provider at the same time

Method used

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  • Fast re-routing method for shared multi-port transmitting link
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  • Fast re-routing method for shared multi-port transmitting link

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Embodiment Construction

[0038] The core idea of ​​the present invention is: under the condition that only one transmission ring network is used for message transmission, multiple ports and backup links are set between the terminal equipment and the transmission equipment connected to it, and the multiple ports are bundled to form a Bind ports and share a transmission link. Perform link detection on multiple link configuration detection mechanisms between the terminal device and the transmission device, and use fast rerouting technology to perform port switching when a link failure occurs, so as to meet the real-time business needs of users and save service providers for the purpose of operating costs.

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here ...

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Abstract

The present invention is applicable to the field of communication transmission, and discloses a fast rerouting method when multiple ports share a transmission link. The method includes: bundling multiple ports sharing the same transmission link in a terminal to form a bundled port; Select an active port among the bundled ports to send and receive messages; perform fault detection on the transmission link; select a backup port to send and receive messages when a link failure is detected. The invention can solve the problem of backup protection when there is only one transmission ring network between two communication devices, and satisfies the real-time service requirements of users.

Description

technical field [0001] The invention relates to the field of communication transmission, in particular to a method for realizing fast rerouting when a plurality of ports share a transmission link. Background technique [0002] With the development of network technology, users have increasingly higher requirements for network reliability. Current networking solutions generally provide multi-link protection. When a link fails, fast rerouting technology is used to implement service switching to ensure Continuity of User Communications. [0003] BFD (Bidirectional Forwarding Detection) is a mechanism used to detect the availability of a forwarding path between a pair of forwarding engines, which provides a low-overhead, short detection period (less than 50ms) failure between two adjacent systems Detection mechanism, including detection of interface, data link and forwarding engine itself. [0004] figure 1 The independent backup link fast rerouting protection scheme in the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/66
CPCY02B60/33H04L45/245H04L45/28H04L45/00H04L45/22Y02D30/50
Inventor 杨平安
Owner HUAWEI TECH CO LTD
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