Method and device for realizing trill network equivalent path

Abstract

The invention provides a method and a device for realizing the equal-cost path of the TRILL network. Wherein the method comprises: a plurality of first routing bridges interconnected in the multi-link transparent interconnection TRILL network constitute a backup group; configuring the IP address of each virtual gateway associated with the backup group on each first routing bridge and MAC address; configure the same virtual routing bridge identifier on each first routing bridge; each first routing bridge publishes the neighbor routing bridge identifier containing the reachability information of the virtual routing bridge identifier in the TRILL network The reachability information; make the second routing bridge used to access the host in the TRILL network calculate the TRILL equivalent path information associated with the virtual routing bridge identifier, and each next hop of the TRILL equivalent path information Corresponding to each first routing bridge in the backup group, each routing bridge in the backup group implements load sharing of the uplink Layer 3 traffic sent from the second routing bridge to the virtual routing bridge.

Description

technical field [0001] The invention relates to network technology, in particular to a method and device for realizing equivalent paths in TRILL networks. Background technique [0002] TRILL (Transparent Interconnection of Lots of Links, transparent interconnection of multiple links) is a large-scale Layer 2 network technical standard formulated by the IETF. [0003] TRILL technology is mainly used to solve the following problems in the STP (Spanning Tree Protocol) network: [0004] 1) Part of the link will be blocked (block), and the link is not fully utilized; [0005] 2) The forwarding path of the data flow may not be the optimal path; [0006] 3) The convergence time of topology changes is slow, and temporary loops may appear. [0007] The advantages of TRILL network are as follows: [0008] 1) All links are in active state, making full use of link bandwidth; [0009] 2) Use the shortest path forwarding; [0010] 3) Support multi-path load sharing. [0011] figur...

AI Technical Summary

Problems solved by technology

[0004] 1) Part of the link will be blocked (block), and the link is not fully utilized;

[0005] 2) The forwarding path of the data stream may not be the optimal path;

[0006] 3) The convergence time of topology changes is slow, and temporary loops may appear

However, the uplink Layer 3 traffic of the same host cannot be load-balanced on different routing bridges

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