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Method, device and system for implementing multicast of HOPE network

A network implementation and multicast technology, applied in the HOPE network field, can solve the problems that multicast services are not involved

Active Publication Date: 2008-02-06
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the HOPE solution is only designed for unicast services, and does not involve multicast services.

Method used

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  • Method, device and system for implementing multicast of HOPE network
  • Method, device and system for implementing multicast of HOPE network
  • Method, device and system for implementing multicast of HOPE network

Examples

Experimental program
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Embodiment Construction

[0024] At present, the MD scheme can realize the multicast of MPLS / BGP VPN, but the MD scheme is aimed at the MPLS / BGP VPN with flat structure, and cannot realize the multicast of the layered HOPE network.

[0025] In order to better understand the present invention, first introduce the MD scheme.

[0026] The existing solution is to deploy MD according to the VPN. In a broad sense, MD refers to the set of all devices that can send and receive multicast packets with each other. For the MD solution of MVPN (Multicast VPN), the so-called MD refers to the set of all VPN instances that can send and receive multicast packets to each other on each PE. MD embodies a device set, that is, PEs belonging to a VPN are classified into an MD. A tunnel established between PEs in the same MD is called an MT (Multicast Tunnel, multicast tunnel), which is used for mutual transmission of multicast protocol packets and multicast data packets between multiple PEs in an MD. MD is like a multi-ac...

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Abstract

The present invention discloses a multicast realizing method in the HOPE network, including the following steps: searching the UPE, which is dominated by the SPE, and the other PEs which are connected with the SPE, based on the VPN; distributing an SPE and an UPE dominated by the SPE into an MD and distributing an SPE and the other PE into another MD; and conducting a multicast of the VPN multicast message from either MD to the other MDs through the SPE. The present invention distributes the MDs through the method of VPN plus PE adjacency so as to be fitful for the characteristics of the layered PEs in the HOPE network and achieve the multicast in the PEs with different layer. Corresponding to the aforesaid method, the present invention also provides a multicast realizing device and system in the HOPE network.

Description

technical field [0001] The present invention relates to the technical field of HOPE (Hiberarchy of Provider Edge Router, layered network edge device architecture) network, and in particular to a method, device and system for realizing multicasting on a HOPE network. Background technique [0002] Referring to FIG. 1 , it is a schematic diagram of MPLS (Multi Protocol Label Switching, Multi Protocol Label Switching) / BGP (Border Gateway Protocol, Border Gateway Protocol) VPN (Virtual Protocol Network, Virtual Private Network) model. The network is composed of the backbone network of the operator and each site (site) of the user. The so-called VPN is the division of the site collection. A VPN corresponds to a collection composed of several sites. Among them, the P router is not aware of VPN; PE is the edge device in the backbone network, directly connected to the user's CE (Custom Edge, user edge device) to complete the main functions of VPN; CE is the user's site directly conne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/18H04L12/46H04L12/56H04L29/06H04L45/16
Inventor 周从洋
Owner NEW H3C TECH CO LTD
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