Three-layer VPN operation maintenance system and method in communication network

A communication network and maintenance system technology, which is applied in the field of three-layer VPN operation and maintenance system, can solve the problems that the application description cannot be applied to OAM, and the operation, maintenance and management of L3VPN cannot be realized, so as to achieve the effect of ensuring reliability

Inactive Publication Date: 2008-04-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0013] Similarly, the PWE3 OAM application description described in the draft draft-delord-pwe3-oam-applications-00.txt cannot be applied to L3VPN OAM
[0014] Therefore, there is currently no mechanism that can realize the OAM function in L3VPN, so that the operation, maintenance and management of L3VPN cannot be realized

Method used

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  • Three-layer VPN operation maintenance system and method in communication network

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Embodiment Construction

[0042] The present invention mainly proposes an OAM management framework aiming at the BGP / MPLS VPN in the current L3VPN and the VR-VPN based on IP / MPLS. Moreover, the management framework of L3VPN OAM proposed by the present invention includes fault and performance management of L3VPN.

[0043] The present invention proposes a layered model of L3VPN OAM. The L3VPN OAM can be specifically divided into two layers, including: a service layer OAM and a network layer OAM.

[0044] Such as figure 1 As shown, the reasons for adopting the layered L3VPN OAM model are:

[0045] (1) The network layer and the business layer can be independent of each other. The network layer is related to specific network technologies, while the business layer only focuses on business functions and has nothing to do with network technology;

[0046] (2) The service layer relies on the network layer. The network layer provides a variety of network topologies, and the service layer can only use one of th...

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Abstract

A method for maintaining operation system of three layer VPN in communication network includes dividing OAM in three layer VPN to be independent service layer operation maintenance domain and independent network layer operation maintenance domain and using relevant maintenance entity to carry out fault and performance operation maintenance separately for service layer communication and network layer communication i.e. setting maintenance entity separately on network layer and service layer to realize OAM function for service layer and network layer.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a system and method for operating and maintaining a three-layer VPN in a communication network. Background technique [0002] VPN (Virtual Private Network) is a virtual private network provided by an operator to users through its public network, that is, from the user's point of view, VPN is a private network of the user. For operators, the public network includes public backbone networks and public operator border devices. VPN member sites that are geographically separated from each other can be connected to the corresponding PE (operator edge equipment) through CPE (client equipment), and form the customer's VPN network through the operator's public network. [0003] There are many ways to implement VPN, which can be divided into Layer 2 VPN and Layer 3 VPN from the perspective of network hierarchy. The L2VPN (Layer 2 VPN) solution is transparent to the client's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/08
Inventor 翟素平
Owner HUAWEI TECH CO LTD
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