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Switching in method for virtual special network and realizing apparatus

A technology of virtual private network and access method, applied in the field of network communication, can solve problems such as lack of flexibility, and achieve the effect of flexible implementation

Inactive Publication Date: 2006-05-17
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is to provide a virtual private network access method to solve the technical problem that the existing technology only uses the outer VLAN ID as the access basis and lacks flexibility in networking

Method used

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  • Switching in method for virtual special network and realizing apparatus
  • Switching in method for virtual special network and realizing apparatus
  • Switching in method for virtual special network and realizing apparatus

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Embodiment Construction

[0023] The core of the present invention is to set up the VPLS access path table, including the VLAN information participating in the access under all VPLS domains in the table: VPLS identification, VLAN label, and port number, thereby setting up the VPLS identification and multi-layer VLAN label and Correspondence between ports; when an input data packet is received, query the VPLS access path table according to the multi-layer VLAN tag of the data packet, obtain the corresponding VPLS domain identifier, and know which virtual private network the input data packet needs to access.

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, a virtual private network and its networking manner are firstly introduced.

[0025] VPN is a virtual private network provided by operators to users through their public network, that is, from the perspective of users, VPN is a private network of users. For operators, the public network i...

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Abstract

A method for switching in virtual special web includes establishing the corresponding relation of VPLS identification to multiplayer VLAN countermark and port by setting up VPLS switch in path table, querying VPLS switch in path table according to multiplayer VLAN countermark to obtain corresponding VPLS domain identification for knowing special web to be switched in by input data packet when input data packet is received.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a virtual private network access method and implementation device. Background technique [0002] Virtual private network VPN refers to a private data communication network established in a public network relying on ISP (Internet Service Provider) and other NSP (Network Service Provider). In a virtual private network, the connection between any two nodes does not have the end-to-end physical link required by the traditional private network, but is dynamically formed using some public network resources. Currently commonly used VPN technologies include Layer 2 technology and Layer 3 technology. Virtual private LAN service VPLS is a layer 2 L2VPN technology, and its performance is that a virtual private network service VPLS domain is like a virtual layer 2 switch. Users in the same VPLS domain belong to the same virtual private network and can communicate with each oth...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L12/46
Inventor 卢胜文
Owner NEW H3C TECH CO LTD
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