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Multi-protocol label switching (MPLS) traffic engineering (TE) tunnel building method and device

A multi-protocol labeling and switching traffic technology, which is applied in the field of multi-label switching traffic engineering tunnel establishment, can solve the problem of non-shared paths between forward and reverse bidirectional MPLSTE tunnels

Active Publication Date: 2012-10-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and equipment for establishing a multi-protocol label switching traffic engineering tunnel to solve the problem that the forward and reverse bidirectional MPLS TE tunnels do not share the same path

Method used

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  • Multi-protocol label switching (MPLS) traffic engineering (TE) tunnel building method and device
  • Multi-protocol label switching (MPLS) traffic engineering (TE) tunnel building method and device
  • Multi-protocol label switching (MPLS) traffic engineering (TE) tunnel building method and device

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Embodiment Construction

[0141] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0142] figure 1 It is a flowchart of a method for establishing an MPLS TE tunnel provided by an embodiment of the present invention. Such as figure 1 As shown, the method of the present embodiment includes:

[0143] Step 101, the second routing device receives the first identifier sent by the first routing device, the first identifier is the id...

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Abstract

The embodiment of the invention provides a multiprotocol label switching traffic engineering tunnel building method and device. The tunnel building method comprises the following steps: a first router device receives identifiers of an MPLS (multi-protocol label switching) TE (traffic engineering) tunnel from the first VPN (virtual private network) embodiment to the second VPN embodiment, sent by the first router device; and according to the identifiers, a second router device obtains the path information of the MPLS TE tunnel from the first VPN embodiment to the second VPN embodiment, and an MPLS TE tunnel from the section VPN embodiment to the first VPN embodiment is established on the basis of the obtained path information, so that the forward and backward bidirectional tunnels share the same path completely or partially, and thus the problems caused by no path sharing in BFD (bidirectional forwarding detection) are solved.

Description

technical field [0001] The invention relates to communication technology, in particular to a method and equipment for establishing a multi-label switching traffic engineering tunnel. Background technique [0002] The 3rd Generation Partnership Project (full English name is The 3rd Generation Partnership Project, English abbreviation is 3GPP) in the wideband code division multiple access (English full name is Wideband Code Division Multiple Access, English abbreviation is WCDMA) R4 standard defined 3G network architecture It mainly includes: Radio Access Network (English name is Radio Access Network, English abbreviation is RAN), core network (English name is Core Network) and bearer network (English name is Backbone). The RAN in a broad sense includes an air interface (Air Interface in English) between a terminal and a base station, that is, a Uu interface, and an Iub interface between a base station and a base station controller. For transmission and bearer, RAN generally ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/46H04L29/06H04L45/50H04L45/02H04L47/724
CPCH04L45/50H04L12/46H04L12/4633H04L12/4645H04L47/825H04L45/36H04L47/828H04L45/02H04L41/0654
Inventor 李振斌
Owner HUAWEI TECH CO LTD
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