User's Manual

Before you Begin
Before you start the configuring VRRP redundancy obtain the following network information:
l VLAN ID on the two local controllers that are on the same Layer-2 network.
l Virtual IP address to be used for the VRRP instance.
Configuring the Local Controller for Redundancy
You can use either the WebUI or CLI to configure VRRP on the local controllers. For this topology, it is
recommended to use the default priority value.
In the WebUI
1. Navigate to the Configuration > Advanced Services > Redundancy page on the WebUI for each of the
local controllers.
2. Under Virtual Router Table, click Add to create a 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.
Parameter Description
IPVersion Select IPv4 \ IPv6 from the drop-down list box.
Virtual Router ID This 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 set.
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 IPAddress \ 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 VRRPID is used on
each member of the redundant pair.
Note: The IP address must be unique and cannot be the loopback address of the
controller. 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 controller can take over the role of master if it
detects a lower priority controller 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.
Table 106: VRRP Parameters
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