Huawei NetEngine80E Configuration Manual - Reliability page 127

Hide thumbs Also See for NetEngine80E:

Table of Contents

HUAWEI NetEngine80E/40E Router

Configuration Guide - Reliability

VRRP-enabled gateway fails. VRRP configuration is simple and takes effect without

modification in configurations such as routing protocols.

mVRRP Definition

The VRRP protocol defines VRRP Advertisement packets. VRRP Advertisement packets are

exchanged to negotiate the master and backup status or elect a master router.

If multiple VRRP backup groups are configured on a single router, each group uses VRRP

Advertisement packets to maintain master and backup status. A large number of VRRP

Advertisement packets use many network bandwidth resources and deteriorate CPU

performance.

Management VRRP (mVRRP) can be used to decrease the number of VRRP Advertisement

packets sent by multiple VRRP backup groups. A specified VRRP backup group functions as

an mVRRP backup group, and others are bound to it and function as service VRRP backup

groups. The status of service VRRP backup groups is determined by mVRRP, and mVRRP

sends VRRP Advertisement packets to negotiate the master and backup status. This reduces the

number of VRRP Advertisement packets, bandwidth consumption, and system burden. An

mVRRP backup group is still a VRRP backup group essentially and has all functions that a

VRRP backup group provides.

VRRP-related Terms and Principles

Issue 02 (2014-09-30)

IP address owner

An IP address owner is the router that uses the virtual IP address of a VRRP backup group

as its interface IP address. The IP address owner retains the Master state in the VRRP

backup group

VRRP in master/backup mode

A virtual router must be set up, consisting of a master router and one or more backup

routers. The master router and backup routers form a backup group. The master and backup

routers have different priorities. The master router has the highest priority among all

routers in the backup group. If the network is working properly, the master router transmits

all services. When the master router fails, a backup router with a higher priority than others

takes over traffic.

Huawei Proprietary and Confidential

shows a VRRP backup group working in master/backup

4 VRRP Configuration

Netengine40e