644| Increasing Network Uptime Through Redundancy and VRRP AOS-W 6.5.3.x| User Guide
Configuring the Local Switch for Redundancy
You can use either the WebUI or CLI to configure VRRP on the local switches. For this topology, it is
recommended you use the default priority value.
In the WebUI
1. Navigate to the Configuration > Advanced Services > Redundancy page for each of the local switches.
2. Under Virtual Router Table, click Add to create a new VRRP instance.
3. Select the IP version.
4. Enter the IPv4\IPv6 Address for the virtual router. Select the VLAN on which VRRP will run. Set the Admin
State to Up.
5. Configure other VRRP parameters as described in the table below.
6. Click Done, then save your configuration.
Parameter Description
IPVersion Select IPv4 \ IPv6 from the drop-down list box.
Virtual Router ID The ID uniquely identifies this VRRP instance. For ease in administration, you
should configure this with the same value as the VLAN ID.
Advertisement Interval
(secs)
This is the interval, in seconds, between successive VRRP advertisements sent
by the current master. The default interval time is recommended.
Default: 1 second
Authentication Password This is an optional password of up to eight characters that can authenticate
VRRP peers in their advertisements. If this is not configured, there is no
authentication password.
Description This is an optional text description to describe the VRRP instance.
IP \ IPv6 Address Based on the selection made in the IP version field, either IPAddress \ IPv6
Address is displayed. This is the virtual IP address that will be owned by the
elected VRRP master. Ensure that the same IP address and VRRPID is used on
each member of the redundant pair.
Note: The IP address must be unique and cannot be the loopback address of the
switch. A maximum of only two virtual IPv6 addresses can be configured on
each VRRP instance. Only IPv6 address format is supported for the v6 instance.
Enable Router Pre-
emption
Selecting this option means that a switch can take over the role of master if it
detects a lower priority switch currently acting as master.
Delay Specifying a value enables the delay timer. The timer is triggered when the
VRRP state moves out of backup or init state to become a master. This is
applicable only if you enable router pre-emption.
When the timer is triggered, it forces VRRP to wait for a specified period of time,
so that all the applications are ready before coming up. This prevents the APs
from connecting to the switch before it can receive them. In the meantime, if
there is an advertisement from another VRRP, the VRRP stops the timer and
does not transition to master.
Priority Priority level of the VRRP instance for the switch. This value is used in the
election mechanism for the master.
Table 139: VRRP Parameters
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