MD (multicast domain) based multicast VPN (virtual private network) traffic optimization method and equipment

A traffic optimization and multicast flow technology, applied in the field of communication, can solve the problems of shared Data-MDT degradation, large consumption of multicast routing resources, and invalid flooding of public network multicast traffic, so as to reduce consumption and reduce invalid flooding. , the effect of saving multicast tunnel resources

Active Publication Date: 2014-03-26
NEW H3C TECH CO LTD
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Problems solved by technology

[0013] It can be seen from the above examples that in extreme cases, a separate Data-MDT needs to be established for each private network multicast flow, which puts great pressure on the tunnel resources on the PE device. Moreover, when the tunnel resources are insufficient, the shared When Data-MDT is used, the shared Data-M

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  • MD (multicast domain) based multicast VPN (virtual private network) traffic optimization method and equipment
  • MD (multicast domain) based multicast VPN (virtual private network) traffic optimization method and equipment
  • MD (multicast domain) based multicast VPN (virtual private network) traffic optimization method and equipment

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[0038] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0039] In the present invention, based on the idea of ​​software-defined networking (Software-Defined Networking, SDN), using the feature that the SDN controller in the SDN network can obtain the status of the entire network device in real time, in the network using the MD-based multicast VPN, deploy A control device, using the control device to obtain the multicast tunnel resource information in the source PE device and the private network multicast flow information that the receiver PE device needs to receive. When the source PE device needs to initiate a Data-MDT switchover, the control device comprehensively considers the actual situation of all PE devices, and selects the optimal Data-MDT for sharing, thereby saving multicast tunnel...

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Abstract

The invention provides an MD (multicast domain) based multicast VPN (virtual private network) traffic optimization method and equipment. The technical scheme includes that the control equipment acquires multicast tunnel resource information configured by a source PE (provider edge) device for a VPN and private network multicast streams needing to be received by each PED device, when a multicast distribution tree switching request sent by the source PE device aiming for the private network multicast streams is received, data multicast group addresses are allocated to the private network multicast streams according to the acquired information, and the source PE device switches the private network multicast streams to Data-MDTs (multicast distribution trees) corresponding to the private network multicast streams. By the method and equipment, multicast tunnel resources on the PE devices can be saved, consumption of public network multicast routing table items and invalid flooding of public network multicast traffic are reduced.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a multicast virtual private network (Multicast VPN, MVPN) traffic optimization method and device. Background technique [0002] Multicast VPN is a multicast transmission technology based on MPLS L3VPN network. The multicast VPN implemented by using the multicast domain (Multicast Domain, MD) scheme is called MD MVPN. [0003] The basic idea of ​​the MD scheme is to deploy a Protocol Independent Multicast (PIM) routing protocol in the backbone network, and assign a unique multicast address in the backbone network to each MVPN, called default multicast Group (Default-Group). A service provider edge (Provider Edge, PE) device connected to the MVPN in the backbone network establishes a Default-Group public network default multicast distribution tree (Default Multicast Distribution Tree, Default-MDT) for the MVPN. When a private network multicast packet needs...

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Application Information

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IPC IPC(8): H04L12/761H04L12/46H04L29/12H04L45/16
Inventor 游君平王锋
Owner NEW H3C TECH CO LTD
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