ArubaOS and Controllers

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Occasional Contributor II
Posts: 27
Registered: ‎01-29-2009

Sync Local Controller with Master Internal User DB

We have 2 3400 controllers, master-local relationship.

For our 802.1X enforce machine authentication WLAN, we make use of adding the MAC address of non-windows devices into the Internal DB of the Master controller to allow them to pass Machine Authentication check.

Most APs are terminated to Master controller, and fail over to local-controller in the case of a controller failure.

By default, the local controller uses the master's Internal DB in authentication, but in case of master controller failure, any Internal DB authentication is also unavailable.

How can I effectively sync the Aruba Master internal db with the local controller internal database?

ArubaOS 6.1.x
Guru Elite
Posts: 21,561
Registered: ‎03-29-2007

Re: Sync Local Controller with Master Internal User DB

The db is not synched between the master and the local. You might want to introduce a backup master controller to deal with this specific issue, or promote the local to a backup master.


Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Occasional Contributor II
Posts: 27
Registered: ‎01-29-2009

Re: Sync Local Controller with Master Internal User DB

I see the the only Internal DB sync would require an export/import of the Internal db...

I never used a backup master controller.
Is that a viable option in a 2 controller setup?

Instead of making the 2nd controller a local , make it the backup master?
Guru Elite
Posts: 21,561
Registered: ‎03-29-2007

Re: Sync Local Controller with Master Internal User DB


I see the the only Internal DB sync would require an export/import of the Internal db...

I never used a backup master controller.
Is that a viable option in a 2 controller setup?

Instead of making the 2nd controller a local , make it the backup master?




Yes, you would do that. In a 2 controller setup, the controllers would have to share a layer2 connection and have a VRRP that the access points connect to. Only one controller would be active at a time, but the local database can be synched using the "database synchronize" function.

Please see chater 5 of the Validated Reference Guide here: http://www.arubanetworks.com/pdf/technology/VRD_Campus_Networks.pdf


Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Occasional Contributor II
Posts: 27
Registered: ‎01-29-2009

Re: Sync Local Controller with Master Internal User DB

thanks for your help
Occasional Contributor II
Posts: 13
Registered: ‎07-12-2011

sync controllers

Why not setup your controllers as master and local and terminate half of your AP's to each one and in the event of a failure of either all AP'sa and clients failover to the controller that is up
Guru Elite
Posts: 21,561
Registered: ‎03-29-2007

Re: Sync Local Controller with Master Internal User DB

That is because the internal database can only exist on one controller, outside of a master/backup master relationship.


Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

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