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Method for selecting link and device therefore

A link selection and link technology, applied in the field of communication, can solve problems such as link load imbalance, and achieve the effect of improving utilization and solving link load imbalance.

Active Publication Date: 2012-10-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a link selection method and device, which can effectively solve the problem of unbalanced link load and improve the utilization rate of link resources

Method used

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  • Method for selecting link and device therefore
  • Method for selecting link and device therefore

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Embodiment Construction

[0043]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] figure 1 It is a flow chart of Embodiment 1 of the link selection method of the present invention, such as figure 1 As shown, this embodiment provides a link selection method, which may specifically include the following steps:

[0045] Step 101, receiving a message, and selecting an initial link according to the received 5-tuple informati...

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Abstract

The embodiment of the invention provides a method for selecting a link and a device for selecting the link. The method comprises the following steps of: receiving a message, and selecting an initial link according to five-tuple information of the received message; collecting a TRUNK member flow status table of TRUNK according to a port where the locally-mutinied initial link is arranged, to obtain the link status flow of the initial link; when the link status flow of the initial link does not reach the preset flow upper limit status, transmitting the message through the initial link; and when the link status flow of the initial link reaches the preset flow upper limit status, selecting the optimal link from the TRUNK according to the TRUNK member flow status table to transmit the message. The embodiment of the invention further provides the device for selecting the link. According to the embodiments, the problem of the imbalance of the link load can be effectively solved, and the use ratio of the link resource can be improved.

Description

technical field [0001] The present invention relates to communication technology, in particular to a link selection method and device. Background technique [0002] In the data center, multiple core switches form a stack (English: stack) device, which is connected to the aggregation switch through a port aggregation (English: TRUNK) link. Among them, TRUNK is also called a link aggregation group (English: Link Aggregation Group , referred to as: LAG). Trunk bundles multiple physical links together as a logical link, that is, the bandwidth of multiple groups of links can be superimposed and used. Trunk technology can realize the mutual backup function of multiple links inside the trunk, that is, when a link in the trunk fails, it will not affect the work of other links, and at the same time, traffic load balancing can be realized among multiple links . When selecting a trunk link, hash (English: hash) is usually performed on the value of the fixed packet characteristic are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56
CPCH04L45/24
Inventor 毕思娟潘灏涛
Owner HUAWEI TECH CO LTD
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