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Path tracing method and routing equipment of lsp in mpls network

A network and equipment technology, applied in the field of routing equipment, can solve problems such as increasing the burden of LSP message forwarding, and achieve the effect of avoiding the transmission of a large number of messages, low burden, and high accuracy

Active Publication Date: 2016-03-09
XINHUASAN INFORMATION TECH CO LTD
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  • Abstract
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Problems solved by technology

[0011] Although the above-mentioned Traceroute can realize the path detection of LSP, it will involve a large number of messages, which will increase the burden of message forwarding on the nodes on the LSP
Moreover, it has been stated in RFC4379 that there is currently no public method to support the detection of load sharing paths in MPLS networks

Method used

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  • Path tracing method and routing equipment of lsp in mpls network
  • Path tracing method and routing equipment of lsp in mpls network
  • Path tracing method and routing equipment of lsp in mpls network

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] In the method provided by the present invention, when TraceRoute is performed on the LSP that contains the load sharing path in the MPLS network, the technical means of the Transit node acting as the Ingress node can be used in the TraceRoute process to continue the TraceRoute, which can avoid the occurrence of A large number of MPLSEchoRequest messages realize low-burden and high-accuracy coverage to detect the connectivity of each path.

[0046] The method provided by the invention is described below:

[0047] Such as figure 2 Shown, the method provided by the invention comprises the following steps:

[0048] Step 201, configure LSPTracerouteX on the Ingress node of the LSP, where X is the IP address of the Loopback interface of the ta...

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Abstract

This application provides a path tracing method and routing equipment for an LSP in an MPLS network. In the present invention, when there is an LSP containing a load sharing path in the MPLS network, through the technical means of the transmission node (Transit node) acting as the head node (Ingress node) in the TraceRoute process, low-burden, high-accuracy tracking can be achieved The connectivity of each path avoids sending a large number of packets during the entire TraceRoute process.

Description

technical field [0001] The present application relates to network communication technology, in particular to a traceroute method and routing equipment for Label Switched Paths (LSP: LabelSwitchedPaths) in a Multi-Protocol Label Switching (MPLS: Multi-ProtocolLabelSwitching) network. Background technique [0002] The MPLS system mainly includes two parts: the signaling control plane and the data forwarding plane. The signaling control plane is responsible for the establishment of the LSP, but it cannot detect the error that the LSP fails to transmit data. However, since the data forwarding plane is based on isolated nodes, there is no way to detect errors such as LSP data transmission failures. [0003] Based on this, in order to facilitate the detection of errors such as LSP data transmission failure, the prior art proposes LSPTraceRoute applied in MPLS networks. LSPTraceRoute is based on the modes of MPLSEchorequest and MPLSEchoreply, and is implemented using the UDP prot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/723H04L12/741H04L45/50H04L45/74
Inventor 赵昌峰
Owner XINHUASAN INFORMATION TECH CO LTD
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