Jake,

It seems that distributed architecture charge a yearly support fee per AP.
In the controller based world, we often skip AP support and self insure 
ourselves due to our large deployments.
To keep in mind when the RFP comes back!!!

Also to consider:

-IP mobility
-Roaming: key exchange, re-auth to RADIUS (load?)
-Openflow compatibility (ARISTA and Aruba are working on some Openflow 
pilots... how do various architecture adapt to switches and AP integrating with 
each other?)
-PoE needs (If the AP is being asked to do more AND 802.11AC comes along...how 
will that work?)

Best,

Philippe Hanset
www.eduroam.us<http://www.eduroam.us>



On Apr 29, 2013, at 10:51 AM, "Barros, Jacob" 
<[email protected]<mailto:[email protected]>>
 wrote:

Hello all.  We are seriously considering replacing our Aruba infrastructure in 
favor of a distributed model.  We are having controller issues this academic 
year and the appeal of a controller-less model is strong.

It feels like I am coming full circle to where I was six years ago.  Though I 
know its not exactly the same, I went back to the thin vs thick debates in the 
archives.  A few things stood out to me as considerations:  One concern was 
vendor longevity.  Another was whether or not the thick AP model would be able 
to keep up with the controller based architecture.  An advantage of the 
controller based architecture that stood out to me was central processing, 
specifically regarding key exchange.

Are these points still valid concerns?  If your administration asked you to 
consider a distributed architecture, what other (vendor-neutral) concerns would 
you have?

Thanks, in advance, for your opinions!



Jake Barros  |  Network Administrator  |  Office of Information Technology
Grace College and Seminary  |  Winona Lake, IN  |  574.372.5100 
x6178<tel:574.372.5100%20x6178>
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