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Method and system for segment protection of Ethernet tunnel

A segmentation protection, Ethernet technology, applied in the field of data communication, can solve problems such as traffic congestion, improve reliability, improve flexibility, and achieve the effect of load sharing

Inactive Publication Date: 2011-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a method and system for load sharing of Ethernet tunnel segment protection, which is used to solve technical problems such as traffic congestion caused by network traffic bursts. Load sharing when switching traffic to backup links while segment protection

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  • Method and system for segment protection of Ethernet tunnel
  • Method and system for segment protection of Ethernet tunnel
  • Method and system for segment protection of Ethernet tunnel

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0035] In this embodiment, a 2:1 (M=2) PBB-TE segmentation protection is taken as an example to illustrate the specific implementation method of the present invention:

[0036] Such as figure 2As shown, for the PBB-TE segment protection group SPG, there is one working link and two standby links. TESI1, TESI2, TESI3, and TESI4 are protected by this SPG. Once the working link fails, TESI1, TESI2, TESI3, and TESI4 protected by the SPG are switched to the backup link 1 and backup link 2 respectively, such as image 3 As shown, TESI1 and TESI2 are switched to standby link 1, and TESI3 and TESI4 are switched to standby link 2. Thus, load sharing of traffic during protection switching is realized. In this embodiment, a BPT (Backup PortTabl...

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Abstract

The invention discloses a method and a system for segment protection of an Ethernet tunnel, which is used for solving the technical problems of flow jam and the like resulted from network flow burst. In the invention, an active link is provided with M standby links as the protection so that the normal operation of a network can be guaranteed under the condition that a plurality of the links are faulted and the reliability of the network is improved; a backup port table (BPT) is configured for each SPG (Segment Protection Group); different priorities are set for the backup ports of different TESIs (Traffic Engineering Service Instances) in each BPT; each flow is switched to different backup links when the flow in the SPG is switched so as to realize the load sharing on the backup link; the BPT configured for the SPG contains the information of the TESIs protected by the SPG motor so that the protection can be carried out aiming at a group of the TESIs; and the defect that all the passing TESIs are switched when the switching is carried out during link protection is overcome so that the flexibility of the network configuration is improved.

Description

technical field [0001] The invention relates to the field of data communication, in particular to an Ethernet tunnel segment protection method and system. Background technique [0002] With the introduction of the concept of carrier-grade Ethernet, higher requirements are put forward for the protection and switching of the Ethernet in order to make the Ethernet reach the carrier-grade standard. In the existing provider backbone network bridging (Provider Backbone Bridge Traffic Engineering, PBB-TE) protection switching technology that supports traffic engineering, what is currently supported is the protection of traffic engineering service instance (Traffic Engineering Service Instance, TESI). This protection is an end-to-end tunnel protection. This end-to-end protection scheme not only takes a long time for protection switching, but also involves too many nodes and lacks protection for intermediate links and nodes. Once a link or a node in the middle fails, the entire TES...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L12/24
CPCH04L47/125H04L12/4633H04L49/351
Inventor 敖婷
Owner ZTE CORP
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