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Method and device for forwarding messages in VPN (virtual private network)

A forwarding table and forwarding policy technology, applied in the communication field, can solve the problems of wasting ACL resources and complex configuration, and achieve the effect of simple and flexible configuration

Active Publication Date: 2014-09-10
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve such a function, in the current technology, the commonly used solution is to implement by setting ACL (Access Control List, access control list) rules, the configuration is relatively complicated and ACL resources are wasted

Method used

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  • Method and device for forwarding messages in VPN (virtual private network)
  • Method and device for forwarding messages in VPN (virtual private network)
  • Method and device for forwarding messages in VPN (virtual private network)

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Embodiment Construction

[0028] The present invention provides a packet forwarding scheme in a VPN network. By configuring routing groups on PE devices in the VPN network and configuring tunnel forwarding policies in different routing groups, different routing attributes can be selected according to the routing attributes of the packets. forwarding path.

[0029] The specific implementation of the present invention will be described in detail below by taking software implementation as an example. The VPN message forwarding device provided by the present invention runs on PE equipment. As the operating carrier of the device of the present invention, the hardware environment of the PE device usually includes at least a CPU, a memory, and a non-volatile memory, and of course may also include hardware such as a forwarding chip and an I / O interface. Please refer to figure 2 , image 3 as well as Figure 4 , the device includes: a saving unit, a generating unit and a forwarding unit. In an exemplary e...

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Abstract

The invention provides a method and a device for forwarding messages in a VPN (virtual private network). The method includes: saving tunnel forwarding strategies corresponding to different route groups in a same VPN, wherein the route groups are set according to route attributes; generating a route forward table according to the tunnel forward strategies, wherein the route forward table contains the route attributes and corresponding relations of forward paths; searching the route forward table after a customer message sent by a customer edge (CE) is received, and forwarding the customer message via a forward path corresponding to the route attribute of the customer message. According to the technical scheme, different customer messages can be forwarded via different paths, and customer's requirements on networking are met.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a message forwarding method and device in a VPN (Virtual Private Network, Virtual Private Network) network. Background technique [0002] Through VPN technology, a private network can be established on a public network and encrypted communication can be carried out. Since VPN technology has many advantages such as low cost and easy use, it is widely used in enterprise networks. [0003] Please refer to figure 1 Shown is a schematic diagram of the VPN network networking structure. Among them, the relevant terms involved are: [0004] CE (Customer Edge, user network edge equipment): connected to the service provider edge equipment through the interface. A CE can be a Layer 2 access device or a host. CE does not "perceive" the existence of VPN. [0005] PE (Provider Edge, service provider edge device): The edge device of the service provider network is directly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/721H04L12/741H04L12/46H04L45/74
Inventor 肖湘光王超群田红宇
Owner NEW H3C TECH CO LTD
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