Method for switching master-slave back-up route apparatus based on virtual router redundant protocol

A redundant protocol and active-standby switching technology, which is applied in the field of network communication, can solve the problems of increasing the complexity of active-standby switching management and not recommending it, and achieve the effect of avoiding unconventional processing, avoiding switching conditions, and improving business stability

Inactive Publication Date: 2007-04-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0028] Although the third method can effectively shorten the fault response time, exiting the VRRP backup group is an unconventional implementation method. When the routing device that exits the VRRP backup group recovers from a fault, it must rejoin the VRRP

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  • Method for switching master-slave back-up route apparatus based on virtual router redundant protocol
  • Method for switching master-slave back-up route apparatus based on virtual router redundant protocol
  • Method for switching master-slave back-up route apparatus based on virtual router redundant protocol

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Example Embodiment

[0048] The core of the present invention is: when the master routing device in the VRRP (Virtual Router Redundancy Protocol) backup group determines that it needs to switch between master and backup, it sends a message requesting state change and keeps it in the VRRP backup group. After receiving the message requesting the state change, each backup routing device immediately starts to compete for the main routing device.

[0049] The following further describes the technical solution provided by the present invention based on the core idea of ​​the present invention.

[0050] First, the main routing device in the VRRP backup group of the present invention needs to determine whether it needs to switch between main and backup according to the actual situation in the network. For example, when the main routing device determines that it cannot complete normal data message forwarding, it decides that it needs to perform the main Standby switchover, if the interface monitored by VRRP ru...

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PUM

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Abstract

The invention provides a VRRP-based master- and backup- router switching method, and its kernel: when a master router in VRRP (virtual router redundancy protocol) backup group determines to need to make master and backup swithcing, it actively sends a state change request message and reserves the message in the VRRP backup group, and after all routers in the VRRP backup group receive the message, they at once start competing the master router. On the premise of fully assuring service stability, the invention increases switching speed of master and backup routers in the VRRP backup group and effectively shortens failure response time.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for switching active and standby routing devices based on a virtual router redundancy protocol. Background technique [0002] The LAN is an important part for terminal devices to access the Internet, and the number of networks in the LAN is particularly large. The reliability of LAN is mainly manifested in the reliability of routing equipment connecting two LANs or the reliability of LAN accessing external networks. Therefore, the reliability technology between networks has become the key to whether a LAN can operate reliably. [0003] A schematic diagram of a LAN accessing the Internet through a single routing device is shown in Figure 1. [0004] In Figure 1, host devices such as PCs and servers in the LAN access the Internet through a single link connected to routing device A. When router A fails, the connection between the LAN and the Internet is inter...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56H04L12/28H04L12/24H04L45/586
Inventor 唐正斌张进军杨勇王宁徐耀伟张日华齐志何荣
Owner HUAWEI TECH CO LTD
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