Introduction To Backup Group - Huawei Quidway S3900 Series Operation Manual

Operation Manual – VRRP
Quidway S3900 Series Ethernet Switches-Release 1510

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
Configure switch priority
Configure preemptive mode
Configure
and authentication key
Configure VRRP timer
Configure 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.
Configuration
authentication type
Huawei Technologies Proprietary
Description
Section
Required
"Configuring switch priority"
Section
"Configuring
Required
mode for a switch in a backup
group"
Section
"Configuring
Optional type and authentication key
for a switch in a backup
group"
Section 1.1.2 V. "Configuring
Required
VRRP timer"
Section
"Configuring
Required
interfaces to be tracked for a
backup group"
1-4
Chapter 1 VRRP Configuration
Related section
1.1.2
1.1.2
preemptive
1.1.2
authentication
1.1.2
the
II.
III.
IV.
VI.
VLAN