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Method for forwarding flow by means of virtual router redundancy protocol backup set and equipment

A technology of redundancy protocol and backup group, the redundancy in hardware is used for data error detection, instrumentation, and response error generation, etc. It can solve problems such as network performance impact, reduce traffic forwarding efficiency, and reduce network load. , The effect of improving traffic forwarding efficiency and reducing traffic interruption time

Active Publication Date: 2012-04-11
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above situations will have a certain impact on network performance, and because the traffic will be interrupted before the ARP packet learning is successful, thus reducing the traffic forwarding efficiency

Method used

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  • Method for forwarding flow by means of virtual router redundancy protocol backup set and equipment
  • Method for forwarding flow by means of virtual router redundancy protocol backup set and equipment
  • Method for forwarding flow by means of virtual router redundancy protocol backup set and equipment

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Embodiment Construction

[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0054] image 3 It is a flow chart of the method for forwarding traffic by means of a VRRP backup group provided in Embodiment 1 of the present invention, as shown in image 3 As shown, the specific steps are as follows:

[0055] Step 301: The Master device in the VRRP backup group regularly sends the user ARP information learned by the device to the Backup device in the VRRP backup group through a VRRP notification message.

[0056] According to VRRP regulations, the master device in the VRRP backup group periodically sends VRRP notification packets to the backup device in the VRRP backup group.

[0057] Here, the user ARP information sent by the Master device to the Backup device includes at least the user IP address and the user VLAN ID, and may further include the user MAC address.

[0058] The master device can traverse the us...

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Abstract

The invention discloses a method for forwarding flow by means of a virtual router redundancy protocol (VRRP) backup set and equipment. The method comprises the following steps: master equipment of the VRRP backup set sends user ARP (address resolution protocol) information which is learned by the master equipment to backup equipment of the VRRP backup set, and the ARP information at least comprises a user IP address and a user VLAN (virtual local area network) identifier; the backup equipment records all user ARP information sent by the master equipment; when the backup equipment is switched to master equipment, according to user ARP information which is recorded by the backup equipment, flow forwarding is carried out. According to the method and the equipment in the invention, flow interruption time in a network fault is reduced, and flow forwarding efficiency is raised.

Description

technical field [0001] The invention relates to the technical field of route backup, in particular to a method and device for forwarding traffic by means of a Virtual Router Redundancy Protocol (VRRP, Virtual Router Redundancy Protocol) backup group. Background technique [0002] Virtual Router Redundancy Protocol (VRRP, Virtual Router Redundancy Protocol) will be able to assume the gateway function routers added to the backup group to form a virtual router, the VRRP election mechanism determines which router undertakes the forwarding task, the host in the LAN only The virtual router needs to be configured as the default gateway. [0003] VRRP is a fault-tolerant protocol that simplifies host configuration while improving reliability. In a local area network with multicast or broadcast capabilities such as Ethernet, VRRP can still provide a highly reliable default link when a certain device fails, effectively avoiding the problem of network interruption after a single link ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/24H04L45/586
CPCG06F11/1658H04L41/0654G06F11/20H04L41/0668H04L45/586G06F11/2023G06F11/2035
Inventor 郑艳涛
Owner NEW H3C TECH CO LTD
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