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Label distribution method, device, system and network equipment

A technology of network equipment and allocation method, applied in the field of network communication, can solve the problems of low forwarding efficiency and long label allocation time, etc., and achieve the effect of improving forwarding efficiency and reducing label allocation time

Active Publication Date: 2013-08-28
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the label allocation time is too long and the forwarding efficiency is relatively low in the label allocation process, the embodiment of the present invention provides a label allocation method, device, system and network equipment

Method used

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  • Label distribution method, device, system and network equipment
  • Label distribution method, device, system and network equipment
  • Label distribution method, device, system and network equipment

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0040] For ease of description, the MPLS network is described first. For details, please refer to the following figure 2 and image 3 description of.

[0041] Please refer to figure 2 , which shows a schematic structural diagram of an implementation environment involved in some embodiments of the present invention. The implementation environment is a data forwarding network including an MPLS network. The data forwarding network includes: IP network 210 , MPLS network 220 , IP network 230 , IP network 240 and IP network 250 .

[0042] The forwarding devices in the MPLS network 220 may be network devices with data forwarding functions such as routers and switches. The forwarding devices in the MPLS network 220 perform forwarding ac...

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Abstract

The invention discloses label distribution method, device, system and network equipment, and belongs to the field of network communication. The label distribution method comprises generating a first label exchange path to second forwarding equipment for first forwarding equipment, generating an FTN for the first forwarding equipment, generating an ILM for third forwarding equipment, and sending the FTN, the ILM and the first label exchange path for the first forwarding equipment and the third forwarding equipment, wherein the first label exchange path passes through the third forwarding equipment. The label distribution device comprises a path generation module, an FTN generation module, an ILM generation module and a sending module. The label distribution device distributes the same label to all forwarding equipment located on the same label exchange path, and in the data package forwarding process, a middle label exchange router does not conduct label popup / press-in operations any more after receiving a data package but directly forwards the data package, and therefore the effects that label distribution time is shortened and forwarding efficiency is improved are achieved.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a label distribution method, device, system and network equipment. Background technique [0002] MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) is a protocol proposed to improve the forwarding speed of routers. Each forwarding device (such as a router or switch) in an MPLS network usually includes a controller at the control plane and a physical forwarding device at the forwarding plane. The forwarding device uses the allocated label to quickly forward the received data packet according to a unique path. The path formed during the label allocation process is a Label Switch Path (LSP, Label Switch Path). [0003] In the existing label allocation method, each controller located downstream of the label switching path assigns different labels to the adjacent upstream controllers located on the label switching path based on forwarding equivalence classes (F...

Claims

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Application Information

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IPC IPC(8): H04L12/723H04L45/50
Inventor 李磊马朋陈双龙
Owner HUAWEI TECH CO LTD
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