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Method, device and system for implementing point to multi-point pseudowire

A node device and pseudowire technology, applied in the field of electrical communication, can solve problems such as heavy workload, misconfiguration, and cumbersome resources, and achieve the effect of improving accuracy and improving establishment efficiency

Inactive Publication Date: 2009-08-12
深圳市智通天下科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] During the research and practice of the prior art, the inventors of the present invention found that due to the static configuration in the prior art, it is necessary to make statistics on the entire network resources and nodes during the configuration, so the resources to be maintained are cumbersome and the workload is heavy. Large and can cause misconfiguration

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  • Method, device and system for implementing point to multi-point pseudowire
  • Method, device and system for implementing point to multi-point pseudowire

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Embodiment Construction

[0036] Embodiments of the present invention provide a method, device, and system for implementing a point-to-multipoint pseudowire. By extending Border Gateway Protocol (BGP, Border Getway Protocol) to implement P2MP PW, the efficiency and accuracy of P2MPPW establishment can be improved. Detailed description will be given below with reference to the drawings.

[0037] BGP is one of the most important routing protocols on the Internet, and can be applied to scenarios across autonomous domains (AS, Autonomour System) and across operators. BGP is a dynamic routing discovery protocol between autonomous systems. Its basic function is to automatically exchange loop-free routing information between autonomous systems. By exchanging path reachability information with autonomous system number (AS) sequence attributes, To construct the topology map of the autonomous area, thereby eliminating routing loops and implementing user-configured routing policies.

[0038] Among them, the auto...

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Abstract

The invention discloses a method for achieving point-to-multipoint pseudo-wires, which comprises the following steps: establishing a border gateway protocol (BGP) protocol with downstream node equipment through negotiation according to the collected network topology information; and sending a BGP message to the downstream node equipment, wherein the BGP message carries point-to-multipoint pseudo-wire labels specifically distributed to a virtual private multicast service (VPMS) embodiment to establish the point-to-multipoint pseudo-wires. The embodiment of the invention also provides corresponding equipment and a system. The technical proposal of the invention does not need static configuration, but needs dynamic establishment, thus the efficiency for establishing the point-to-multipoint pseudo-wires is improved; besides, relative to the static configuration, the accuracy rate of configuration is improved.

Description

technical field [0001] The present invention relates to the technical field of electrical communication, in particular to a method, device and system for realizing Point to Multi-point Pseudo Wire (P2MPPW, Point to Multi-point Pseudo Wire). Background technique [0002] In Layer 2 Virtual Private Network (L2VPN, Layer2 Virtual Private Network), a variety of service types are defined, for example, virtual private line service (VPWS, Virtual Private Wire Service) and virtual private LAN service (VPLS, Virtual Private LAN Service), etc. . The VPWS service provides a point-to-point L2VPN service, and the VPLS is used to emulate an Ethernet local area network (LAN, LocalArea Network) service. In the existing L2VPN, simple point-to-multipoint services or LAN services can be provided, but the provision of point-to-multipoint (P2MP, Point to Multi-Point) services is cumbersome. To implement P2MP services based on the existing architecture, it is necessary to complete the path esta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/18H04L12/56H04L12/46H04L12/24H04L29/08
Inventor 薛莉
Owner 深圳市智通天下科技服务有限公司
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