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System and method for realizing cross-interchanger link aggregation on OpenFlow interchanger

A technology of link aggregation and switch, which is applied in the field of Ethernet link aggregation, can solve the problems that the MLAG synchronization protocol cannot communicate with each other, and achieve the effect of load sharing and protection

Active Publication Date: 2015-05-20
SUZHOU CENTEC COMM CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art, provide a system and method for realizing cross-switch link aggregation on an OpenFlow switch, and implement MLAG technology through the standardized OpenFlow protocol, so that the OpenFlow switch can access non-OpenFlow devices (server or traditional access switch), it can provide load sharing and fault protection functions for the connected non-OpenFlow devices, and solve the problem that the MLAG synchronization protocol between different manufacturers of traditional switches cannot communicate with each other

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[0028] 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.

[0029] Such as figure 1 As shown, it is an actual scene of the MLAG application deployed in the embodiment of the present invention. The figure includes the OpenFlow controller, the traditional aggregation network upstream of the OpenFlow switch, and the downstream OpenFlow access network. The traditional aggregation network consists of non-OpenFlow switches, that is, traditional two Layer or layer 3 (L2 / L3) Ethernet switches are responsible for the traffic aggregation and intercommunication of different OpenFlow access networks. The OpenFlow access network includes two OpenFlow switches and two service servers. The two OpenFlow switches are used to receive The management of the MLAG application on the OpenFlow controller constitutes the MLAG instance and is responsible for the access...

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Abstract

The invention discloses a system and a method for realizing cross-interchanger link aggregation on an OpenFlow interchanger. Through building an MLAG (multi-chassis link aggregation) application on an OpenFlow controller, the MLAG application triggers the OpenFlow controller to send an LACP (link aggregation control protocol) message to non-OpenFlow equipment through the OpenFlow interchanger, and in addition, the OpenFlow interchanger sends the LACP message received from the non-OpenFlow equipment to the MLAG application to be processed through the OpenFlow controller. The system and the method have the advantages that through a standardized OpenFlow protocol, an MLAG technology is realized, so that the OpenFlow interchanger can provide the load sharing and fault protection functions for the accessed non-OpenFlow equipment when the non-OpenFlow equipment is accessed, and the problem that the traditional Ethernet interchanger cannot realize the intercommunication of MLAG synchronous protocols among different manufacturers is solved.

Description

technical field [0001] The invention relates to the technical field of Ethernet link aggregation, in particular to a system and method for realizing cross-switch link aggregation based on the OpenFlow protocol. Background technique [0002] In the data center networking, the MLAG (Multi-Chassis Link Aggregation) technology of the traditional switch virtualizes two access switches connected to the server or two aggregation switches connected to the access switch into one device, so that the server or the access switch device can realize cross-device link aggregation through the LACP protocol (Link Aggregation Control Protocol, Link Aggregation Control Protocol), which can realize fault protection while realizing load balancing. [0003] However, the above prior art needs to run the MLAG synchronization protocol on the switch to synchronize the state of the switch, which increases the complexity of control and is not conducive to the separation of the control plane and the for...

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Application Information

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IPC IPC(8): H04L12/891H04L12/931H04L47/41
Inventor 张东亚
Owner SUZHOU CENTEC COMM CO LTD
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