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Mlag switching protection method based on aps

A protection group and protection switching technology, applied in the field of APS-based MLAG switching protection, can solve problems such as slow speed, packet loss, and disconnection, and achieve the effect of simple steps

Active Publication Date: 2018-04-10
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] FDB protection switching can be performed through the above two solutions, but when refreshing the FDB port, because it is processed by the CPU, the speed is relatively slow, and at the same time it will cause a certain degree of packet loss and disconnection
And clearing all FDBs based on this port will cause broadcasting on this device within a certain period of time
Even in some cases, FDB can lead to long broadcasts without a chance to relearn

Method used

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  • Mlag switching protection method based on aps
  • Mlag switching protection method based on aps

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Embodiment Construction

[0018] 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.

[0019] like figure 1 Shown, the MLAG switching protection method based on APS of the present invention comprises the following steps:

[0020] First, create a Peer Link corresponding to MLAG, specifically, as figure 2 As shown, the Peer Link is established between two sets of switches Switch1 and Switch2 respectively corresponding to one set of MLAGs.

[0021] Next, the aggregation port is bound to the MLAG, wherein the aggregation port is composed of ports between two connected devices, and the aggregation port enables all ports to jointly participate in the forwarding of data traffic. It should be noted that the above two steps are in no particular order, that is, the aggregation port may be bound to the MLAG before the Peer Link is created.

[0022] Next, create a protection gr...

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Abstract

The invention discloses an APS-based MLAG switching protection method, comprising: creating a Peer Link corresponding to the MLAG; binding an aggregation port with the MLAG; Create a protection group in , obtain the next hop address, and store the corresponding relationship between the MLAG ID and the next hop address; ) for protection switching. The invention adopts the APS-based MLAG switching protection method without refreshing the FDB table or clearing the FDB, and the APS switching speed of the switching chip can reach the millisecond level, which is much faster than the speed of table refreshing and relearning. Moreover, the steps of the present invention are simple, simpler and more reliable than swiping the meter, and there is no problem that the original port cannot be found after swiping back from the Peer Link.

Description

technical field [0001] The present invention relates to the communication field, in particular to an APS (Automatic Protection Switching, automatic protection switching)-based MLAG (Multi-Chassis Link Aggregation, cross-device aggregation) switching protection method. Background technique [0002] In a high-reliability data center topology, two aggregation switches are used to connect TOR (The Onion Router, onion routing) switches and servers to provide redundancy protection. In this topology, the Spanning Tree Protocol (STP) prevents network loops by blocking half of the ports of the aggregation switch, but doing so reduces bandwidth by 50%. [0003] The above problems can be solved by deploying MLAG (Multi-Chassis Link Aggregation, cross-device aggregation). That is, two aggregation switches are connected through an MLAG link, making them logically resemble one device. The ports on the two devices together form an aggregation port, so that all ports can jointly participa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/911H04L12/939H04L12/705H04L45/18
CPCH04L45/18H04L47/827H04L49/552H04L49/557
Inventor 丁奕张卫峰
Owner SUZHOU CENTEC COMM CO LTD