Routing method and system for telecom Ethernet

Abstract

The invention discloses a telecom Ethernet routing method and a system thereof. Ethernet switching equipment which are connected with each other are integrated into a domain; different network segment addresses are distributed to every Ethernet switching equipment in the domain; a boundary Ethernet switching equipment in the domain is used for distributing different host addresses to every visible external host; when an Ethernet message entering the domain reaches the boundary Ethernet switching equipment, the source address of the message is substituted by a new Ethernet address which comprises the network segment address of the boundary Ethernet switching equipment and the host address which is distributed by the source host and is used for sending the message, and the message is transferred into the domain according to the target address. When the Ethernet message which leaves the domain reaches the boundary Ethernet switching equipment, the target address of the message comprisingthe network segment address and the host address is replaced by an actual external host address according to the corresponding relationship between the distributed host address and the actual host address, and the message is transferred out of the domain to a target host. The MAC address explosion problem on PE equipment is solved.

Description

technical field [0001] The present invention relates to telecommunication Ethernet technology, in particular to a method and system for telecommunication Ethernet routing. Background technique [0002] At present, the telecommunications Ethernet network mainly includes technologies such as VPLS (Virtual Private LAN Services, virtual private local area network service) and PBB (Provider Backbone Bridge, operator backbone bridge). The VPLS technology requires Full Mesh full connections to be established between PE (ProviderEdge, operator's edge) devices, but this will lead to the problem of too many VCs (the so-called N square problem). This problem becomes extremely apparent as PE equipment increases. In order to solve this problem, VPLS is upgraded to H-VPLS (Hierarchical VPLS, hierarchical VPLS) technology. By layering PE devices, the number of PEs that need to directly establish Full Mesh full connections is effectively reduced, thereby reducing the number of VC (Virtual...

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Problems solved by technology

[0005] In view of this, the present invention proposes a method and system for telecom Ethernet routing, which solves the problem of H-VPLS and PBB at the convergence point that require FullMesh full connection in the telecom Ethernet network under H-VPLS and similar network topologies. The problem of MAC address explosion in the PE device

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