Method and apparatus for managing label switching route tunnel information

A label switching path and tunnel information technology, which is applied in the field of label switching path tunnel information management, can solve the problems of complex operation, inability to quickly restore VPN services, and time-consuming problems
CN101299723AActive Publication Date: 2008-11-05NEW H3C TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2008-11-05

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Abstract

The invention discloses a method for managing label switching path (LSP) tunnel information, including: respectively binding an LSP tunnel identification for every LSP tunnel destination, wherein, the LSP tunnel destination is in one-to-one correspondence with the LSP tunnel identification; acquiring the LSP tunnel identification bond to the LSP tunnel destination and recording into the VPN forwarding table, during establishing an VPN forwarding table arriving the LSP tunnel identification; during establishing the LSP tunnel, using the LSP tunnel identification bond to the LSP tunnel destination to identify the LSP tunnel, and establishing corresponding NHLFE table for the LSP tunnel; and refreshing the NHLFE table corresponding to the variation of the LSP tunnel, when the LSP tunnel changes. The invention also discloses an apparatus for managing LSP tunnel information. The invention can reduce information maintenance complexity and reduce VPN service recovery time, when the LSP tunnel changes.
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Description

Technical field

[0001] The present invention relates to multi-protocol label switching (MPLS, Multi Protocol Label Switch) technology, in particular to a method and device for managing label switch path (LSP, Label Switch Path) tunnel information. Background technique

[0002] MPLS is a technology that uses labels for message forwarding. It has the advantages of fast forwarding, QoS guarantee, and multi-service support. It plays an important role in the next-generation telecommunications network. MPLS VPN is a virtual private network (VPN, Virtual Private Network) based on MPLS technology. It applies MPLS technology to network routing and switching equipment, which can be used to construct broadband Intranet and Extranet to meet a variety of flexible business requirements.

[0003] figure 1 Shows a typical MPLS VPN network diagram, including: customer edge equipment (CE, CustomEdge), backbone network edge equipment (PE, Provider Edge), and backbone network core equipment (P, Pr...

Claims

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