This is just really surprising to me that you have to do this with Aruba (adjust Tx manually). On Cisco, the RRM and TPC are really well implemented, and in general when dealing with dense deployments in residential halls, the 2.4 radios are running at such low Tx power that a dual 2.4/5 client will never pick 2.4 over 5 unless: 1) It’s broken, 2) The client is in a fringe area and there isn’t another 5 Ghz radio to roam to, or 3) The AP placement is outside the client use area e.g. In hallway instead of in-room.
Also, I note in your doc you say "Try to avoid locating APs in the same locations on each floor of a multi-story building (aka, stacking).” With Cisco APs where the entire bottom of the AP is a metal plate, you’re actually better off stacking AP’s on adjacent floors, especially in cases where you want to utilize location services. Staggering AP’s across multi-floor can result in a client on say floor 2 being closer to an AP on floor 3, making location services unreliable. If the Ap’s are stacked, unless the floor is made of glass, a client on floor 2 should always associate with AP’s on the same floor. Jeff From: "[email protected]<mailto:[email protected]>" on behalf of Chuck Enfield Reply-To: Chuck Enfield Date: Wednesday, August 12, 2015 at 8:43 PM To: "[email protected]<mailto:[email protected]>" Subject: Re: [WIRELESS-LAN] Exclusive 2.4 Ghz and 5 Ghz SSIDs 2, Turn down power on 2.4 GHz so it is at least 3 dB weaker than 5 GHz throughout the coverage area. This is what makes the devices prefer 5 GHz. (It may go without saying given this recommendation, but we configure the AP with a fixed Tx power. RF management only chooses the channel. The benefits of optimizing the power settings of the two radios on an AP easily outweigh the benefits of the crappy power adjustment algorithms used by the AP manufacturers.) ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
