Huawei Quidway S3900 Series - Introduction to Backup Group

Operation Manual – VRRP
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 1 VRRP Configuration
Huawei Technologies Proprietary
1-4
1.1.2 Introduction to Backup Group
I. Configurations available on switches in a backup group
VRRP can group switches in a LAN into a virtual router, which is also known as a
backup group.
You can perform the following configuration on an S3900 series switch that belongs to a
backup group.
Table 1-1 Configuration available on switches in a backup group
Configuration Description Related section
Configure switch priority Required
Section
1.1.2 II.
"
Configuring switch priority”
Configure preemptive mode Required
Section
1.1.2 III.
"
Configuring preemptive
mode for a switch in a backup
group”
Configure authentication type
and authentication key
Optional
Section
1.1.2 IV.
"
Configuring authentication
type and authentication key
for a switch in a backup
group”
Configure VRRP timer Required
Section
1.1.2 V. "Configuring
VRRP timer”
Configure the VLAN interfaces to
be tracked for a backup group
Required
Section
1.1.2 VI.
"
Configuring the VLAN
interfaces to be tracked for a
backup group”
II. Configuring switch priority
You can configure the priority of a switch in a backup group. VRRP will determine the
status of each switch in a backup group according to the priority of the switch. The
master switch in a backup group is the one currently with the highest priority.
Switch priority ranges from 0 to 255 (a larger number indicates a higher switch priority)
and defaults to 100. Note that only 1 through 254 are available to users. Switch priority
of 255 is reserved for IP address owners.
 Note:
The priority of the IP address owner is fixed to 255.