Command Explanation

masterip <ipaddr> ipsec <key> Configuresthe master IP address and pre-shared keyon a local
controller forcom munication with the master controller.
Configurethis to be the virtual IP address of the VRRP instance used
formaster redundancy.
NOTE:All theAPs and local Dell controllersi n thenetwork should be configured wi ththe virtual IP address as the master IP
address.The master IP address can be configured for local Dell controllers during the Initial Setup. The controll er will require a
rebootafter changing the master IP on the controller.
If DNS resolution is the chosen mechanism fort heA Ps to discover their master controller,ensure that the name

“aruba-master”

resolvest o the same virtualI P addressc onfiguredas a part of the master redundancy.
Configuring D atabase Synchron ization
In a redundantmaster controller scenario, you can configurea redundant pair to synchronize their WMS andlocal
userdatabases. I n addition, you can also synchronize RF Plan data between t he pair of Dell controllers.You can
either manuallyor automatically synchronize the databases.
NOTE:When synchroniz ing the databases,Dell recom mends thatyou also synchronize RF plan data.
Whenmanually synchronizing the database, the active VRRP master synchronizes its database with the standby.
The commandt akeseffect i mmediately.
Whenconfiguring automatic synchronization, you set how often the two Dell controllerss ynchronizetheir
databases. To ensures uccessfulsynchronization of database events, yo u shouldset periodic synchronization to a
minimum period of 20 minutes.
In the WebUI
1. Oneach co ntroller,navigate to the Conf iguration > Advanced Services > Redundancy page.
2. UnderD atabase Synchronization Parameters, do the following:
a. Select the Enable periodic databasesyn chronization check box. This enables database synchronization.
b. E nter the frequencyof synchronizing the databases. Dell recommends a minimum value of 20 minutes.
c. By default, RF Plan data is also synchronized. Dell recommends that you always enable this opt ion.
3. Click Apply.
In the CLI
Use the following commandst o configuredatabase sy nchronization.
Command Description
database synchronize Thisenabl e mode command manually synchronizes the
databasesand takes effect immediately.
database synchronize rf-plan-data Thisconfig m ode command includes RF plan data when

Table14 2:

Databasesynchronizationc ommands

DellPowerConnect W- Series ArubaOS 6.2 | UserGuide VRRP | 481