Rooted multipoint service implementation method, device and system, and provider edge equipment

Abstract

The invention discloses a Border-Gateway-Protocol-based rooted multipoint service implementation method, device and system and a provider edge device. According to the technical scheme of the embodiments of the invention, a first PE (Provider Edge Equipment) obtains a type of an AC (Attachment Circuit) connected by a neighbor PE through received route update information, at most two pseudo wires are established between the first PE and the neighbor PE according to the type of the AC configured and connected by the first PE and the type of the AC connected by the neighbor PE; a pseudo wire is not established between the first PE and the neighbor PE when the AC connected by the first PE and the AC connected by the neighbor PE are both leaf ACs, so that communication isolation between a customer edge equipment connected by the leaf ACs can be achieved; and as the at most two pseudo wires are established between the first PE and the neighbor PE, the number of pseudo wires can be reduced, the degree of complexity for managing the pseudo wires is reduced, and thus the problems of large resource consumption and complex management on the pseudo wires in the conventional E-Tree service implemented technology can be overcome.

Description

technical field [0001] The present invention relates to the field of network communication, in particular to a border gateway protocol (Border Gateway Protocol, BGP)-based basic multipoint service implementation method, device and system, and operator edge equipment. Background technique [0002] At present, in order to support the actual needs of enterprises to deploy data centers based on Multi-Protocol Label Switching (MPLS, Multi-Protocol Label Switching) and Virtual Private Network (VPN, Virtual Private Network), the Internet Engineering Task Force (IETF, Internet Engineering Task Force) new Defined a new type of two-layer virtual network L2vpn technology: basic multi-point technology (E-TREE, Ethernet tree). Such as figure 1 It is a schematic diagram of a typical E-TREE application scenario. figure 1 Provider Edge (PE, Provider Edge) 1, PE2, PE3, and PE4 belong to the same virtual forwarding instance (Virtual Forwarding Instance, VFI), and the PEs in the same VFI are...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the embodiments of the present invention provide a basic multipoint service implementation method, device and system, and an operator's edge device to solve the problems of large consumption of pseudowire resources and management problems in existing E-Tree service implementation technologies. complicated question

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