System and method for realizing cross-switch link aggregation on openflow switch

A link aggregation and switch technology, applied in the field of Ethernet link aggregation, can solve problems such as the inability of MLAG synchronization protocols to communicate with each other, and achieve the effect of load sharing and protection.

Active Publication Date: 2018-06-15
SUZHOU CENTEC COMM CO LTD
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  • Abstract
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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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  • System and method for realizing cross-switch link aggregation on openflow switch
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  • System and method for realizing cross-switch link aggregation on openflow switch

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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 present invention discloses a system and method for realizing cross-switch link aggregation on an OpenFlow switch. By constructing an MLAG application on the OpenFlow controller, the MLAG application triggers the OpenFlow controller to send LACP messages to non-OpenFlow devices through the OpenFlow switch, and The OpenFlow switch sends the LACP packets received from non-OpenFlow devices to the MLAG application for processing by the OpenFlow controller. The present invention implements the MLAG technology through the standardized OpenFlow protocol, so that when the OpenFlow switch accesses the non-OpenFlow device, it can provide load sharing and fault protection functions for the connected non-OpenFlow device, and solve the problem of traditional Ethernet switches between different manufacturers. The problem that the MLAG synchronization protocol cannot communicate with each other.

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 implement link aggregation across devices 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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/891H04L12/931H04L47/41
Inventor 张东亚
Owner SUZHOU CENTEC COMM CO LTD
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