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Contributor II
Posts: 45
Registered: ‎11-07-2011

Multiple VRRPs, different VLANs

Hi 

 

I have a customer that wants to have 3 separate vlans for communication with the controller.

VLAN30, raps connect from the outside

VLAN 20, caps

VLAN 10, caps guest network

 

They have 2 controllers and want to run VRRP on all 3 VLANs, is it possible? what is best practice? i assume the controllers need to be set on active-active in the case that VLAN 30 cant communicate with controllerA and VLAN20 cant communicate with controllerB. Both controller has to be able to accept AP termination.

Is this configuration in some way easier if i enable LACP?

 

thanks

 

Carlos

Guru Elite
Posts: 8,641
Registered: ‎09-08-2010

Re: Multiple VRRPs, different VLANs

What are you trying to accomplish by having APs terminate in different vlans but on the same controllers? APs generally terminate at the management IP of the controller and is really only the destination IP for the GRE tunnel. What forwarding mode are you using on your SSIDs?

Tim Cappalli | Aruba Security TME
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
Contributor II
Posts: 45
Registered: ‎11-07-2011

Re: Multiple VRRPs, different VLANs

hi 

 

thanks for the answer

 

Since the ports are only 1gb, the idea is to maximize the throughput by separating raps from caps.

All caps are run in tunnelmode, raps run in tunnel and bridge.

So if APs are only able to terminate on the mgmt address of the controller, then there is no point of having multiple VRRPs?

 

/carlos

Guru Elite
Posts: 8,641
Registered: ‎09-08-2010

Re: Multiple VRRPs, different VLANs

Right. You should use a port-channel to aggregate your links together.

If you want to be able to terminate APs on both controllers simultaneously, you should consider a master/local topology.

Tim Cappalli | Aruba Security TME
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
Contributor II
Posts: 45
Registered: ‎11-07-2011

Re: Multiple VRRPs, different VLANs

Ok, so is it possible to have an inside mgmt address and an outside mgmt address and run VRRP on those addresses?

 

Contributor II
Posts: 45
Registered: ‎11-07-2011

Re: Multiple VRRPs, different VLANs

Thanks for your answers. But still unsure of how redundancy can work for our deployment. See the case below

 

We have a customer that have 2 controllers, controllerA and controllerB. He wants to have 3 different VLANs with vrrp.
1. Is it possible to have the controllers run i active/active and having full database/configuration synchronization enabled?
2. Do we have to enable LMS to configure where VLANs will terminate? for choosing master controller
3. Is it neccesary to configure VRRP if we will use LMS ip?
4. If we are having a VRRP address, do we need to add it to the dns or will ADP automatically detect it?
5. If we run the controllers in master/standby, what will trigger the controller to change master? Is it when the management ip is down?

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