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Method for establishing traffic engineering-over-label switch path tunnel and equipment

A label switching path and tunnel establishment technology, which is applied in the field of traffic engineering TE-overLSP tunnel establishment on the label switching path, can solve the problems of unfavorable resource optimization, inability to specify iterative MPLSTE tunnels for different LSPs, etc., to optimize service protection and realize resource Effect

Active Publication Date: 2017-10-31
HUAWEI TECH CO LTD
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Problems solved by technology

However, in the seamless MPLS solution, in an MPLS domain, for LSPs with the same next hop, specific MPLS TE tunnels cannot be specified for different LSPs. As a result, different MPLS TE tunnels cannot be used for different services, which is not conducive to resource allocation. optimization

Method used

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Embodiment Construction

[0050] The following will describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are part of the embodiments of the application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this application.

[0051] The application scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. Those of ordinary skill in the art know that with the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of...

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Abstract

The invention discloses a method for establishing a traffic engineering-over-label switch path (TE-over LSP) tunnel and equipment. The embodiment of the invention provides a TE-over LSP tunnel establishment method and equipment. The method comprises: a forwarding device receives a control message sent by a domain controller, wherein the control message includes a TE-over LSP tunnel identifier ID, an input label, an output label, and an output interface identifier; the forwarding device establishes a TE-over LSP tunnel corresponding to the TE-over LSP tunnel ID based on the control message, so that the forwarding device forwards a message by using a TE tunnel or a physical interface as an output interface based on the indication of the output interface identifier when the TE-over LSP tunnel is used for forwarding a message. According to the method disclosed by the invention, TE-over LSP tunnels iterated to different TE tunnels can be established for different services and thus different services are carried at different TE-over LSP tunnels for forwarding, so that resources optimization and service protection are realized.

Description

technical field [0001] The embodiment of the present application relates to the communication field, and specifically relates to a method for establishing a traffic engineering TE-over LSP tunnel on a label switching path, a forwarding device, a domain controller (Domain Controller, DC) and a cross-domain controller (Hierarchical Controller, HC ). Background technique [0002] An Internet Protocol (Internet Protocol, "IP" for short) bearer network is usually a Multi-Protocol Label Switching (Multi-Protocol Label Switching, "MPLS" for short) network. MPLS simplifies the processing of data packets and improves the forwarding efficiency of data packets. MPLS-based technologies such as Traffic Engineering (Traffic Engineering, TE) and fast route protection have improved the quality of service (Quality of Service, QoS) of the network. In particular, MPLS integrates multiple networks into an Ethernet (Ethernet)-based infrastructure, which fully demonstrates the advantages of a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/723H04L12/46H04L45/50
CPCH04L12/4633H04L45/50
Inventor 车佳王凤梅阴元斌
Owner HUAWEI TECH CO LTD
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