between switchs. To simplify the process and reduce the bandwidth occupied by protocol
packets, you can configure a VRRP backup group to be an mVRRP backup group and bind it
to other backup group members. Then, the status of the backup group member is determined by
the status of the bound mVRRP backup group.
VRRP6
VRRP for IPv6, also called VRRP6, is a fault-tolerant protocol functioning as an extension to
the VRRP protocol. VRRP6 groups multiple switchs into one virtual router. When the next hop
of a host fails, VRRP6 can switch services to another switch through a certain mechanism. This
thus ensures coherence and reliability of communications.
The following table shows the comparison between VRRP6 and VRRP for IPv4 based on
functions.
Function VRRP6 VRRP for IPv4
Master/backup mode Supported Supported
Load balancing mode Supported Supported
Interface status tracking Supported Supported
Fast VRRP switchover Supported Supported
Pinging a virtual IP address Supported Supported
Security authentication of VRRP
backup groups
Not supported Supported
Smooth VRRP switching Not supported Supported
mVRRP Supported Supported
6.3 Configuring the VRRP Backup Group
By configuring the VRRP backup group in master/backup mode or load balancing mode, you
can implement the communication between hosts inside a LAN and external networks.
6.3.1 Establishing the Configuration Task
Before configuring a VRRP backup group, familiarize yourself with the applicable environment,
complete the pre-configuration tasks, and obtain the required data. This can help you complete
the configuration task quickly and accurately.
Applicable Environment
The VRRP backup group works in master/backup mode or load balancing mode.
l The master/backup switchover is a basic function provided by VRRP. The master/backup
mode is as follows:
– Only one backup group exist.
Quidway S6700 Series Ethernet Switches
Configuration Guide - Reliability 6 VRRP and VRRP6 Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
217
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