Network Management

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Occasional Contributor II
Posts: 15
Registered: ‎05-26-2015

Aruba Instant versus Controller

Hello's

Looking for some advise. At what point does it make sense to choose Controller versus Instant? From my readings special use cases like wanting to utilize VIA would warrant having a controller. Use cases such as load or "# of   AP's deployed" do not necessarily warrant a controller. Can someone please verify this and also list what other situations would make me choose one over the other?

 

Thanks,

1-M

Guru Elite
Posts: 8,194
Registered: ‎09-08-2010

Re: Aruba Instant versus Controller

One of the major considerations is complexity of the edge network. In a controller deployment, the APs can sit on any end-user VLAN since the actual wireless VLANs exist on the controller. With Instant, you would have to configure your edge network to have all the necessary wireless and management VLANs and tagged on all AP switchports. Another piece is scale. Controllers can handle thousands of access points. Instant clusters should stay below 128 access points.

Tim Cappalli | Aruba ClearPass TME
@timcappalli | ACMX #367 / ACCX #480 / ACEAP / CWSP
Occasional Contributor II
Posts: 15
Registered: ‎05-26-2015

Re: Aruba Instant versus Controller

Thanks for your response. 

I do agree that VLAN's at the edge can add complexity especially as the number of edge switches increase but, do i lose any functionality when comparing the two?

Also, from a scale perspective, IF i was managing using Airwave doesn't this soemwhat become a moot point? I could have multiple L2 clusters all managed by Airwave and therefore get around the 128 access points #? 

Also on a side note, is it published anywhere the recommended/supported # of Instant Access points per Cluster?

 

Thanks,

 

Guru Elite
Posts: 8,194
Registered: ‎09-08-2010

Re: Aruba Instant versus Controller

There is not 100% feature parity between Instant and controller. Please work with your Aruba team or Aruba partner to help determine which will fit.

 

You are correct about having multiple clusters managed with AirWave.

 

I believe the 128 number is stated in the release notes and user guide.


Tim Cappalli | Aruba ClearPass TME
@timcappalli | ACMX #367 / ACCX #480 / ACEAP / CWSP
MVP
Posts: 1,408
Registered: ‎10-25-2011

Re: Aruba Instant versus Controller

here you go, from the user guide.

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Pasquale Monardo | Senior Network Solutions Consultant
ACDX #420 | ACMP
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