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Device and method for realizing MLAG (multi-system link aggregation) by logical ports

A technology of logical port and link aggregation, applied in the field of network communication, it can solve the problems of occupying bandwidth and difficult to achieve MLAG requirements of three-layer services, and achieve the effect of reducing complexity and improving bandwidth utilization.

Active Publication Date: 2015-04-01
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The shortcomings of the existing solution are mainly manifested in: 1. The multicast and broadcast services will be unconditionally copied to link 3, which takes up a large amount of bandwidth; It is difficult to realize the MLAG requirements of the three-tier service

Method used

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  • Device and method for realizing MLAG (multi-system link aggregation) by logical ports
  • Device and method for realizing MLAG (multi-system link aggregation) by logical ports
  • Device and method for realizing MLAG (multi-system link aggregation) by logical ports

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Embodiment Construction

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0031] A device and method for realizing multi-system link aggregation using logical ports disclosed by the present invention are mainly used for redundant protection of cross-device links in network switching equipment. Such as figure 2 As shown, it is a schematic diagram of the module structure when server A and server B communicate normally in the embodiment of the present invention, including upstream server A, switching routing device 1, switching routing device 2 and downstream server B. When server A and server B communicate During normal communication, switching and routing device 1 sends services to server B through link 1, and switching and routing device 2 sends services to server B through link 2. Link 1 and link 2 are combined to form a logical link. Server B randomly s...

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Abstract

The invention discloses a device and a method for realizing MLAG (multi-system link aggregation) by logical ports. The method comprises steps as follows: each switching and routing device transmits business received from an upstream server to a downstream server through respective physical link; when part of physical links break down, the switching and routing devices corresponding to the broken links rebind the corresponding logical ports to normally operating physical ports, meanwhile, business enable at the logical ports is inserted into a VLAN (virtual local area network) label and is switched to the switching and routing devices connected with the physical ports through the rebound physical ports for transmission; the switching and routing devices after switching directly forward the business to the corresponding logical ports in the switching and routing devices according to the received VLAN label and transmit the business to the downward server through the physical ports bond with the logical ports. According to the device and the method for realizing MLAG by the logical ports, the bandwidth usage efficiency of the protection link is improved, applications of current various network businesses on MLAG can be supported, and the software complexity is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a device and method for realizing multi-system link aggregation by using logical ports. Background technique [0002] With the development of Internet technology and the popularization of network applications, more and more data are transmitted on the network, and the requirements for transmission time and reliability are also getting higher and higher. One way to reduce the transmission time is to increase the bandwidth of the transmission link. In recent years, the bandwidth has increased from 10M (megabyte) to 100M, 1000M, 10G (10 Gigabit), etc., but the increase in bandwidth cannot improve the reliability of the link. . [0003] If multiple links can be used as one link, it can not only increase the network bandwidth, but also play the role of link backup. Link aggregation is to bundle multiple physical links together to form a logical link, so as to realize l...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/937
Inventor 顾祥洪
Owner SUZHOU CENTEC COMM CO LTD
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