Virtual private LAN service communication method and device

A virtual private and local area network technology, applied in the field of two-layer virtual private network business, can solve the problems of lack of standardization, cumbersome methods, unfavorable user operation and management, etc., to improve flexibility, facilitate mutual communication, and meet diversified needs Effect

Active Publication Date: 2010-07-14
ZTE CORP
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Problems solved by technology

[0007] However, at present, VPLS technology faces problems such as immature protocol and lack of standardization, and some problems encountered in practical applications have not yet been resolved
For example, the intercommunication between VPNs in the VPLS network affects the flexibility of the VPLS network to a certain extent.
[0008] like figure 1 VPN1 and VPN2 are two VPNs. When the users of ...

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  • Virtual private LAN service communication method and device
  • Virtual private LAN service communication method and device
  • Virtual private LAN service communication method and device

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Embodiment Construction

[0061] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. The following examples are only used to illustrate and explain the present invention, but not to limit the technical solution of the present invention.

[0062] For realizing the method and the device of virtual private area network communication provided by the present invention, the present invention defines internal VLAN (Virtual Local Area Network, virtual local area network) mark (hereinafter referred to as VLAN for short with VLAN mark, promptly no matter for VLAN or for internal VLAN, Both refer to a model represented by a numerical value) and are used inside a switch as a PE. The present invention expands the scope of the VLAN identification (the numerical range of the traditional VLAN is 4K), and the size of the internal VLAN is optional according to the size of the switch memory, such as figure 2 shown. ...

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Abstract

The invention discloses a virtual private LAN service (VPLS) communication method and a device, which relate to provider edge equipment (PE). The method comprises the following steps: assigning the same VLAN for VPNs requiring the realization of interconnection after the configuration of a plurality of VPNs by the PE, and using the internal VLAN as a mark of a broadcasting domain; checking the VLAN inside the VPN when receiving the massage of the VPN by the PE, and transferring or broadcasting the massage according to the internal VLAN and the target MAC of the message; and carrying out MAC address study and/or MAC drift processing according to the internal VLAN and the source MAC of the message. The invention can conveniently realize the intercommunication between the VPNs in the VPLS network, and the building flexibility of the VPLS network is improved, so the diversification requirement of users can be met.

Description

technical field [0001] The present invention relates to the realization of the two-layer virtual private network (VPN, Virtual Private Network) service based on Multi-Protocol Label Switching (MPLS, Multi-ProtocolLabel Switching) in data communication, especially relate to the realization of the virtual private local area network service (VPLS, Virtual Private LAN Service ) method and device for mutual communication between network VPNs. Background technique [0002] Traditional VPN, due to its shortcomings such as high service cost, poor scalability, and complicated maintenance and management, has increasingly become a bottleneck for the development of operators' networks. MPLS uses label switching technology to provide connection-oriented data transmission, has security similar to ATM (Asynchronous Transfer Mode) and Frame Relay (FR, Frame Relay) networks, and can provide VPN services. MPLS technology realizes the automatic label distribution of low-level protocols, and c...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/56
Inventor 钱勇孙蓓陈春雷
Owner ZTE CORP
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