A method, a system, and a network device for TRILL network interconnection

Abstract

An interconnection method, system and equipment of TRILL network are disclosed in the present invention, and the method comprises: the first interconnection equipment in the first TRILL network receives equipment information of each equipment in the second TRILL network sent by second interconnection equipment in the second TRILL network; the first interconnection equipment generates virtual node of each equipment according to the equipment information of each equipment, and the first interconnection equipment is the neighbor to each virtual node; the interconnection equipment generates multiple LSP packets according to the neighbor relation, and said multiple LSP packets carries said neighbor relation; the first interconnection equipment floods multiple LSP packets in the first TRILL network. In the present invention, when the topology of the second TRILL network changes but the equipment in the second TRILL network does not change, the first TRILL network will not trigger re-calculate route, and therefore, the convergence time on interconnecting of TRILL network can be improved.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a TRILL (Transparent Interconnection of Lots of Links, transparent interconnection of multiple links) network interconnection method, system and equipment. Background technique [0002] TRILL is a routing protocol based on link state calculation on a layer 2 network. It is implemented through the IS-IS (Intermediates System to Intermediate) protocol. The device running the TRILL protocol is called RB (Route Bridge, Routing and bridging equipment), a network composed of multiple RBs is called a TRILL network. In the TRILL network, the RB obtains the network topology and distribution tree information through the TRILL protocol. The RB can use itself as the source node to generate a unicast forwarding table to other RBs in the TRILL network through the shortest path tree algorithm, or the RB can use The root of each distribution tree in the network is the sour...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a TRILL network interconnection method, system, and equipment to solve the problem that unified routing calculation needs to be performed again when a network topology in the existing Internet network changes

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