Implementing method and system for support VPLS service on IP skeletal network

An implementation method and backbone network technology, applied in the field of VPLS bearer and network communication, can solve the problems of unfavorable VPLS service promotion and application, VPLS cannot use IP backbone network, etc., and achieve the effect of preventing packet spoofing attacks and facilitating promotion and application.

CN100428739CActive Publication Date: 2008-10-22HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2008-10-22

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Abstract

This invention relates to a method for supporting VPLS services on an IP backbone network and a system including: setting up an L2TPv3 tunnel for transmitting the VPLS service based on the L2TPv3 in the IP network, then, utilizing said L2TPv3 tunnel to transmit the VPLS service, in which, this invention can use the L2TPv3 signaling protocol to support VPLS service on the IP backbone network, so that the VPLS can break away from the MPLS network and applies the IP backbone network.
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Description

technical field

[0001] The invention relates to the technical field of network communication, in particular to the technical field of VPLS bearer. Background technique

[0002] VPLS (Virtual Private LAN Service, virtual private local area network service) is a network interconnection implementation scheme that can be used for the interconnection of LANs in enterprise branch offices. That is, VPLS enables users to extend their LAN (Local Area Network, Local Area Network) to MAN (Municipality Area Network, Metropolitan Area Network), or even WAN (Wild Area Network, Wide Area Network), so as to provide multi-point to multi-point LAN in the wide area. Interconnects provide the basis for implementation.

[0003] VPLS needs to simulate the forwarding mechanism of LAN, that is, forward packets through MAC (Medium Access Control, Media Access Control) addresses, and forward packets that cannot be found by searching for MAC addresses to other ports belonging to the same LAN except t...

Examples

Embodiment Construction

[0053]The core of the present invention is to expand the L2TPv3 (Layer 2 Tunnel Protocol Version 3, Layer 2 Tunnel Protocol third edition) technology, so that it can establish a connection between point-to-multipoint based on the IP backbone network in the same geographical area, thereby L2TPv3 can be used as signaling to support VPLS, thereby realizing VPLS services based on the IP backbone network.

[0054] The L2TPv3 technology allows establishing a connection between a pair of routers to transmit layer 2 data. L2TPv3 is a standard tunneling protocol that can pass through one or more layer 3 networks in a point-to-point manner. Therefore, the L2TPv3 technology can be used to build a Layer 2 VPN (Virtual Private Network, virtual private network), or to support the interconnection of traditional frame relay, ATM (Asynchronous Transfer Mode, asynchronous transfer mode), private lines and other networks.

[0055] Such as figure 1 As shown, the figure shows an example of using ...