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A method, system and client edge device for implementing mpls VPN

A technology for implementing methods and devices, applied in the field of communications, and capable of solving MPLSVPN information security and other issues

Active Publication Date: 2017-12-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a kind of realization method of MPLS VPN, system and client edge device, to solve the problem of the information security of traditional MPLS VPN

Method used

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  • A method, system and client edge device for implementing mpls VPN
  • A method, system and client edge device for implementing mpls VPN
  • A method, system and client edge device for implementing mpls VPN

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Embodiment Construction

[0071] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0072] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0073] The method used in this embodiment still utilizes the existing MPLS VPN mechanism, but it is implemented by enhancing the functions of the relevant network elements involved in the MPLS VPN and appropriately restricting the information exchange between CE-PEs.

[0074] Specifically, a small number of false routes are disclosed to the PE, or called planned routes. The planned route information can be public network routes or pr...

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Abstract

An MPLS VPN implementation method, system, and client edge device, the method comprising: each relevant PE obtains planning routing information of a client VPN network site, and generates a corresponding VRF; when forwarding VPN internal messages to other sites, CE looks up the route comparison table according to the destination IP address of the received VPN internal message, and uses the planned route corresponding to the source IP address and the planned route corresponding to the found destination IP address as the new source and destination IP addresses respectively for packet encapsulation , and forward the original message as the load of the new message to the PE; after the PE receives the new message, it performs conventional MPLS VPN processing, and sends the new message to the peer PE according to the local VRF, and the peer PE The PE sends the new message to the corresponding peer CE according to the VRF of the peer PE; the peer CE decapsulates the received new message, recovers the original message, and forwards the message.

Description

technical field [0001] The present invention relates to the field of communications, and more particularly to an MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) VPN (Virtual Private Network, Virtual Private Network) implementation method, system and client edge equipment. Background technique [0002] MPLS VPN has become a typical network service due to its easy acquisition, extensive access measures, relatively cheap, reliable, QoS (Quality of Service, service quality) guarantee and other characteristics. MPLS VPN is mainly used to realize the connection between different site networks. [0003] Such as figure 1 As shown, the site network is connected to the border router PE (Provider Edge, operator edge device) of the operator through the customer router CE (Customer Edge, customer edge device) to realize network connection, perform routing interaction, and implement packet Forward. At present, various VPN technologies have been developed, among wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/723H04L12/46H04L29/12H04L45/50
CPCH04L12/4633H04L45/50
Inventor 顾忠禹
Owner ZTE CORP
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