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Fault switching method and system and hub provider edge (Hub PE) router

A failover and business edge technology, applied in the field of network communication, can solve problems such as SpokenPE business interruption and SpokenPE business paralysis, and achieve the effect of avoiding long-term interruption, avoiding even paralysis, and improving reliability

Active Publication Date: 2011-06-22
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing VPLS solution, there is only one Hub PE in the VPLS Hub-Spoke network. When the connection between a Spoken PE and the Hub PE fails, the service of the Spoken PE will be interrupted; because all the Spoken CEs The message forwarding between all Spoken PEs depends on the Hub PE. Once the Hub PE fails, the services of all Spoken PEs will be paralyzed

Method used

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  • Fault switching method and system and hub provider edge (Hub PE) router
  • Fault switching method and system and hub provider edge (Hub PE) router
  • Fault switching method and system and hub provider edge (Hub PE) router

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Embodiment Construction

[0020] 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.

[0021] The core idea of ​​the present invention is mainly as follows: at least two Hub PEs are included in the VPLS Hub-Spoke networking, and each Spoken PE in a virtual switching instance (VSI) uses one of the Hub PEs as the main Hub for message traffic forwarding PE, and other Hub PEs as standby Hub PEs; when HubPE detects that the connection between the Hub PE and any Spoken PE in the VSI is disconnected, or detects that the connection between the Hub PE and Hub CE is disconnected, it disconnects The connection between the active Hub PE and all Spoken PEs in this VSI, so that after the Spoken PE detects that the connection with the active Hub PE is disconnected, it will switch the packet traffic to the standby Hub PE with the highest priority in...

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Abstract

The invention provides a fault switching method and system. The method is applied in a VPLS (Virtual Private Lan Service) Hub-Spoke network comprising at least two hub provider edge (Hub PE) routers and at least two spoken provider edge (Spoken PE) routers, each Spoken PE in a virtual switch instance (VSI) takes one of the Hub PEs as a primary Hub PE to forward message flow, and the other Hub PEs are used as spare Hub PEs. According to the method, a service in the VSI can be switched to the spare Hub PEs when a fault occurs in the connection between a certain Spoken PE and the primary Hub PE or between a primary Hub PE device and a Hub CE (Customer Edge), thereby long interruption even paralysis on the service is avoided, and the reliability of the VPLS Hub-Spoke network is improved.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a failover method, system and center provider edge router. Background technique [0002] Virtual private area network central server topology networking (VPLS Hub-Spoke) is widely used in banks, schools, and large enterprises and companies with various distributions because it facilitates the centralized management of other sub-sites by the central site. [0003] VPLS Hub-Spoke networking can be as follows: figure 1 As shown in the figure, the central customer edge router (Hub CE) centrally manages each branch customer edge router (Spoken CE), that is, when each spoke CE accesses each other, it must go through the Hub CE, and the Hub CE forwards the message to the destination spoke CE . There are two MAC tables on both the branch provider edge router (Spoken PE) and the center provider edge router (Hub PE), which are respectively identified as MAC-A table and MAC_...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/26H04W36/00
Inventor 宋小恒
Owner NEW H3C TECH CO LTD
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