Label allocation method, device, system and network equipment

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

Active Publication Date: 2016-03-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • Label allocation method, device, system and network equipment
  • Label allocation method, device, system and network equipment
  • Label allocation 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 a label distribution method, device, system and network equipment, belonging to the field of network communication. The label allocation method includes: generating a first label switching path for the first forwarding device to the second forwarding device, the first label switching path passing through the third forwarding device; generating an FTN for the first forwarding device; generating an FTN for the third forwarding device Generate an ILM; send the FTN, the ILM, and the first label switched path to the first forwarding device and the third forwarding device. The label distribution device includes a path generation module, an FTN generation module, an ILM generation module and a sending module. The present invention distributes the same label to all forwarding devices located on the same label switching path, and in the process of data packet forwarding, the intermediate label switching router does not perform label pop-up / press-in operation after receiving the data packet, but It directly forwards the data packets, which reduces the label allocation time and improves the forwarding efficiency.

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-ProtocolLabelSwitching, 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 assigned label to quickly forward the received data packet according to a unique path. The path formed during the label assignment process is a label switching path (LSP, LabelSwitchPath). [0003] In the existing label allocation method, each controller located downstream of the label switching path assigns different labels to the controller located adjacent upstream on the label switching path based on forwarding equivalence classes (FEC,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/723H04L45/50
Inventor 李磊马朋陈双龙
Owner HUAWEI TECH CO LTD
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