Enhanced VPN network optimization method and apparatus

A technology for network equipment and network optimization, applied in the field of network communication, it can solve the problems of different VLAN values, which can only be implemented, but not VPN user services.

CN1838633AActive Publication Date: 2006-09-27NEW H3C TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2006-09-27

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Abstract

The enhanced VPN optimization method comprises: (1) on network device access port, mapping the VLAN label of user data frame into VPN ID according to physical port; (2) transferring former data frame in network; (3) on output port, mapping the data frame with VPN ID into the one with user VLAN label for transmission according to the output physical port. This invention can be used for 4K*4K VPNs and uses two layer of VLAN label for user business type mark in one VPN.
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Description

technical field

[0001] The present invention relates to the technical field of network communication, in particular to an enhanced VPN (Virtual Private Network, virtual leased line) network optimization method and equipment. Background technique

[0002] A local area network in the same physical form can be divided into multiple VLANs (Virtual Local Area Network, Virtual Local Area Network), and each VLAN cannot be directly accessed, but can only be accessed through a routing device, which can improve the security and reliability of the network. VPN (Virtual Private Networks, Virtual Private Network) technology is a technology that transmits a private network through a public network. Through this technology, private networks in different locations can be connected, which is a cheap and efficient method. Currently commonly used Layer 2 VPN technologies include V-switch technology (VLAN switching technology, a technology that uses VLAN label switching for forwarding), QinQ te...

Examples

Embodiment Construction

[0033] In order to better understand the present invention, the present invention will be further described below in conjunction with specific embodiments. Of course, this specific embodiment is only a demonstration and typical example of the present invention, and cannot limit the scope of protection claimed by the present invention.

[0034] The typical implementation steps of the enhanced VPN network optimization method provided by the present invention include three main steps of operator network ingress port processing, operator network internal forwarding and operator network egress port processing. Here, the carrier is taken as an example to better demonstrate in combination with the actual situation, and the carrier network here may be any network with a Layer 2 VPN function. At the same time, the ingress port and egress port of the network operator here can be physical ports on different network devices in the same network, or different physical ports on the same netwo...