FWIW, based on comments from the list, we recently tried a couple of the 450D SMs on some underperforming links. Actually we were going straight from 430 SMs in compatibility mode to the 450D, so I dont know what we would have gotten by popping a regular 450 SM into the dish. But on this small sample, the signal and stability improved noticeably. Hard to say exactly why. But it might be worth a try. If youre down at 1X or 2X though, finding a different tower might be necessary.
From: Af [mailto:[email protected]] On Behalf Of Chris Wright Sent: Monday, September 26, 2016 3:24 PM To: [email protected] Subject: Re: [AFMUG] 450 on 14.2 (Build 30) Low Traffic, High Frame Utilization Aha, thanks! Bummer that a couple bad eggs spoil the entire AP. Well have to go out and improve these relics from when we had lower standards. Chris Wright Network Administrator From: Af [mailto:[email protected]] On Behalf Of George Skorup Sent: Monday, September 26, 2016 12:34 PM To: [email protected] <mailto:[email protected]> Subject: Re: [AFMUG] 450 on 14.2 (Build 30) Low Traffic, High Frame Utilization Look at the AP's power tab on the sessions page. Do you see any SMs at MIMO-A and/or less than 8X/6X modulation? That's the downlink rate to the SMs. 4X is going to eat up some air time. 2X and 1X is obviously even worse. MIMO-A is even more ungood. I know Aaron talked about adding support to penalize low mod SMs so they will have less effect on air time utilization. I hope that's coming in 14.3. Or maybe he said for 15.0. I don't remember. On 9/26/2016 2:07 PM, Chris Wright wrote: I have a couple 450 APs showing relatively low traffic (20mbps) but 100% downlink frame utilization on a 20mhz channel. I�ve seen this AP do twice as much traffic with less frame utilization in the past, so what would be causing this? � VC Count: 48 � Frame Configuration: Downlink Data: 75% Contention Slots: 6 Broadcast Repeat Count: 2 � Chris Wright Network Administrator �
