Method and system for realizing virtual router redundant protocol master and standby equipment switching

A technology of standby equipment and main equipment, applied in the field of network communication, can solve the problems of long switching time and difficult to meet the standby equipment, and achieve the effects of easy implementation, low implementation cost and simple technical solution

Active Publication Date: 2009-04-15
HUAWEI TECH CO LTD
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Problems solved by technology

[0007] When the VRRP primary device fails, the switching time of the standby device is too long (up to 3s), which is difficult to meet the needs of 3G / NGN (Next Generation Network, next-generation network) and other services that have strict restrictions on switching time (eg less than 1s)

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  • Method and system for realizing virtual router redundant protocol master and standby equipment switching
  • Method and system for realizing virtual router redundant protocol master and standby equipment switching

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Embodiment Construction

[0026] The core idea of ​​the present invention is: in the VRRP equipment, use the link failure detection technology to detect the state of the back-to-back link between the VRRP main equipment and the VRRP standby equipment, adjust the priority of the VRRP standby equipment according to the link state, and according to the VRRP The priorities of the standby device and the active device are used to switch between the VRRP standby device and the active device.

[0027] The technical scheme of the present invention is applicable to figure 1 In the back-to-back networking mode of the shown VRRP active and standby devices, there may be one or more back-to-back links between the VRRP active device and the VRRP standby device. The specific implementation method includes the following steps:

[0028] Step 1: In the VRRP equipment (including VRRP active and standby equipment), use the link fault detection technology to detect the back-to-back link between the VRRP active equipment (t...

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Abstract

A method for realizing switch-over of master device and standby device based on redundant protocol of virtual router includes detecting state of back to back link between VRRP master device and VRRP standby device by utilizing link fault detection technique, regulating priority of VRRP standby device according to detected link state and carrying out switch-over process of VRRP master and standby devices according to priority of VRRP standby device and priority of VRRP master device.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and a system for realizing VRRP master and backup device switching. Background technique [0002] With the development of network technology, users have increasingly higher requirements for network reliability. User equipment usually requires access to dual gateways, and VRRP (Virtual Router Redundancy Protocol, Virtual Router Redundancy Protocol) runs between the gateways. In this protocol, the default gateway (usually called VRRP master device) of the terminal IP device on the shared multi-access medium (such as Ethernet) is redundantly backed up (the backup gateway is called VRRP backup device), so that When one of the routing devices fails, the backup routing device takes over the forwarding work in time to provide users with transparent switching and improve the network service quality. [0003] Typical back-to-back networking of VRRP master and backu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L45/586
Inventor 熊怡
Owner HUAWEI TECH CO LTD
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