I’m going to walk through the steps for configuring master redundancy.  Here is my scenario:

Primary Master – 10.10.10.11 (should always be the master if up)

Backup Master – 10.10.10.12

VRRP IP – 10.10.10.15

VRRP ID – 10

VLAN – 10

First let’s start with the VRRP configuration on the Primary Master.

config t

vrrp 10

vlan 10

ip address 10.10.10.15

priority 110

preempt

description Preferred-Master

tracking master-up-time 30 add 20

no shut

Now let’s configure the Backup-Master

config t

vrrp 10

vlan 10

ip address 10.10.10.15

priority 100

preempt

description Backup-Master

tracking master-up-time 30 add 20

no shut

Once VRRP is up I need to associate the VRRP instance with master controller redundancy:

On the Primary:

config t

master-redundancy

master-vrrp 10

peer-ip-address 10.10.10.12 ipsec aruba123

On the Backup:

config t

master-redundancy

master-vrrp 10

peer-ip-address 10.10.10.11 ipsec aruba123

Once the VRRP instance is associated with master redundancy then I need to synchronize the WMS and local user database between the two controllers:

config t

database synchronize period <minutes> – defines the scheduled time to sync the databases (minimum should be 20 minutes)