Users Guide

626| Increasing Network Uptime Through Redundancy and VRRP Dell Networking W-Series ArubaOS 6.5.x| User Guide
(host) (config) #ha group-profile grp1
(host) (HA group information "grp1"): controller <ipaddress> role dual
2. Configure the AP’s standby controller with a dual role in the high-availability group profile:
(host) (HA group information "grp1"): controller <ipaddress> role dual
Configuring VRRP Redundancy
In a Dell network, APs are controlled by a controller. The APs tunnel all data to the controller for processing,
including encryption/decryption and bridging/forwarding data. Local controller redundancy provides APs with
failover to a backup controller if a controller becomes unavailable. Local controller redundancy is provided by
running VRRP between a pair of controllers. The APs are then configured to connect to the “virtual-IP”
configured for the VRRP instance.
The two controllers must be connected on the same broadcast domain (or Layer-2 connected) for VRRP operation.
The two controllers should be running the same version of ArubaOS.
The following section of this document includes the following procedures:
l Before you Begin on page 626
l Configuring the Local Controller for Redundancy on page 626
l Configuring the LMS IP on page 629
l Configuring the Master Controller for Redundancy on page 629
l Configuring Database Synchronization on page 631
l Enabling Incremental Configuration Synchronization (CLIOnly) on page 631
l Configuring Master-Local Controller Redundancy on page 632
Before you Begin
Before you begin configuring VRRP redundancy, obtain the following network information:
l VLAN ID for the two local controllers on the same Layer-2 network.
l Virtual IP address to be used for the VRRP instance.
Before you configure VRRP, ensure that the VRRP VLAN has at least one active physical port. This port is required for
the VRRP state to become master.
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 you use the default priority value.
In the WebUI
1. Navigate to the Configuration > Advanced Services > Redundancy page for each of the local
controllers.
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.