Tyson, 1. We are using Cambium stock 65* dualslant antennas. 2. Mix of routers. We have a BYOR (bring your own router) policy. 3. All AP's are sync'd with either CMM4 or CTM2.
Adam, We will certainly focus more attention on those SM's that have poor modulation. It wouldn't surprise me if the most active SM's are the ones stuck at 1x or 2x. George, We have not considered downgrading. Our entire network has been upgraded to 13.4. That over 500 SM's at this point. I'm a little nervous about downgrading. The reality here is that upgrading a FSK sector to 450 gets us only a little over double the capacity. FSK aggregates around 13mb/s and around 27mb/s aggregate for the 450. This is quite disappointing. It appears that we must now be very selective over what SM's can register. A nearly impossible task in our situation. Use caution if you plan on ripping and replacing your old FSK. You will not yield the kind of throughput you'd expect. On Fri, Nov 6, 2015 at 12:28 PM, Tyson Burris @ Internet Communications Inc <t...@franklinisp.net> wrote: > Eric, > > Thanks for bringing this up. We recently started deploying about 30 450 > AP's. Our testing in the field and with customers is producing the same > EXACT problem you just reported. > > More importantly, we see this problem on AP's with low SM's to high SM ranges > (5-45). Same firmware. > > Let's compare some notes: > > 1. What antennas are you using? > 2. What routers / OS are you using? > 3. What sync source are you using? > > We see high frame uses even on the AP's with low SM's and great modulation > rates. > I can understand if a large number of SM's have low modulation it will eat up > frames, but the outcome is the same on low and high SM counts. > > > > Tyson Burris, President > Internet Communications Inc. > 739 Commerce Dr. > Franklin, IN 46131 > > 317-738-0320 Daytime # > 317-412-1540 Cell/Direct # > Online: www.surfici.net > > > What can ICI do for you? > > Broadband Wireless - PtP/PtMP Solutions - WiMax - Mesh Wifi/Hotzones - IP > Security - Fiber - Tower - Infrastructure. > > CONFIDENTIALITY NOTICE: This e-mail is intended for the > addressee shown. It contains information that is > confidential and protected from disclosure. Any review, > dissemination or use of this transmission or its contents by > unauthorized organizations or individuals is strictly > prohibited. > > -----Original Message----- > From: Af [mailto:af-boun...@afmug.com] On Behalf Of Eric Muehleisen > Sent: Friday, November 6, 2015 12:51 PM > To: af@afmug.com > Subject: [AFMUG] 450 frame utilization and performance issues > > We have a few 450 AP's with 30-40 subscribers and have been getting several > slow speed complaints lately. I just chaulked it up to issues with the SM > since the AP rarely got over 20mb/s downlink. We upgraded to 13.4 recently so > we could watch our frame utilization. We started graphing it over night and > as you can see, we are hitting 100% for sustained periods of time. During > that time the AP is only doing approx. 23mb/s. This particular AP has 34 > registered SM and the majority show 6x and 4x with 4 or 5 SM's at 2x and 1x. > The performance is a major disappointment. Anyone else have similar > experiences? > > AP configuration: 20mhz channels, 2.5ms frame, 10 miles, 75% downlink, > 3 contention slots. > > Attached is a screenshot of the utilization and sector throughput calculator > from the Capacity Planner R13. >
