The WCS Client Association History is pretty good. But you still have to find the needle in the haystack. I think trending might be the job of middleware like the MSE in some floor-specific on-demand context.
The WCS does allow searches on clients that includes a column with RSSI/SNR. Data rates and retries are like dark matter, you have to use probes. Maybe CleanAir version 2? Has anyone looked at 7Signal? www.7signal.com Thanks, Bruce Johnson | Network Engineer Partners Healthcare | Network Engineering 617.726.9662 | [email protected] On Sep 30, 2011, at 10:30 AM, "Lee H Badman" <[email protected]> wrote: > Thanks, Kees. > > In fairness to Cisco, I can follow individual clients on data rates as well. > Id love to see some sort of data rate trending capability, but then again > it's easy to ask for something but harder to write the code, I realize. > > ________________________________________ > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [[email protected]] On Behalf Of Kees Pronk > [[email protected]] > Sent: Friday, September 30, 2011 10:25 AM > To: [email protected] > Subject: [WIRELESS-LAN] Disappointing numbers of 5ghz clients > > client devices STA's are *really* not intelligent so even when a better > AP is nearby they stay connected to further away AP's on lower > datarates. So even if you have dense deployment of your AP's you may end > up with bad datarates.... > We do not have control over the devices of our students, we can only > give advices (dual radio, uptodate drivers etc.etc.) > > > I know it made a difference because I checked myself the latency and > throughput in our busiest study halls before and after *and* I followed > the students comments on twitter about our wireless lan. The tone of the > tweets became much more positve after the change / they did not send > #fail tweets anymore ;-) Also the Juniper / Trapeze cli on the > controllers enables me to follow a specific STA realtime so i noticed a > much better quality of sessions (high data rates) compared to before > the change was made. > > > Kees. > >>>> Peter P Morrissey 30-09-11 13:45 >>> > How do you measure the before and after performance boost? > It seems like if you have good coverage already, there is less of a > likelihood of connecting at a low data rate anyway, right? How do you > know you really made a difference? > > Peter M. > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[email protected]] On Behalf Of Kees Pronk > Sent: Friday, September 30, 2011 4:33 AM > To: [email protected] > Subject: [WIRELESS-LAN] Betr.: Re: [WIRELESS-LAN] Betr.: Re: > [WIRELESS-LAN] Disappointing numbers of 5ghz clients > > Airmagnet software gives you an excellent insight in the amout of > clients connecting at which datarates. Also Juniper/Trapeze (which we > use) Ringmaster has nice reports on this. > Too many STA's connecting on low datarates, that is why we got rid of > 1,2,55, and 11 on 802.11gn, and also the low datarates on 802.11an. > If you have high density wifi AP deployments this is an absolute > performance booster. Be careful when using VOWLAN though. > > > regards, Kees. > >>>> Lee H Badman 29-09-11 19:25 >>> > Now I'm getting curious. We have had 1 and 2 Mbps disabled for years and > are contemplating also pulling the plug on 5.5 and maybe 11. > > We have Cisco WCS, and I'm struggling to find a meaningful way to > quantify whether the lower rates are being used and to what extent, > without hopping through hundreds of clients individually to see what > they are at. Has anyone found any sort of data rate trending/reporting > mechanism to use as you turn off legacy rates? > > Regards- > > Lee Badman > > Lee H. Badman > > Wireless/Network Engineer > > Information Technology and Services > > Adjunct Instructor, iSchool > > Syracuse University > > 315 443-3003 > > > > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[email protected]] On Behalf Of Osborne, Bruce > W > Sent: Thursday, September 29, 2011 7:47 AM > To: [email protected] > Subject: Re: [WIRELESS-LAN] Betr.: Re: [WIRELESS-LAN] Disappointing > numbers of 5ghz clients > > You can't turn off 11b if you need to support wireless game consoles. On > our Aruba system, we turned off 1 & 2 Mbit transmit rates, but we needed > to list 2 as a basic rate, primarily for Nintendo gaming systems. We > have 5.5 Mbit turned on for Transmit & Basic rates. > > This allows some performance improvement, while still permitting some > 11b & gaming consoles designed for consumer networks. > > Bruce Osborne > Wireless Network Engineer > IT Network Services > > (434) 592-4229 > > LIBERTY UNIVERSITY > 40 Years of Training Champions for Christ: 1971-2011 > > -----Original Message----- > From: Voll, Toivo [mailto:[email protected]] > Sent: Wednesday, September 28, 2011 2:09 PM > Subject: Re: Betr.: Re: [WIRELESS-LAN] Disappointing numbers of 5ghz > clients > > You're correct, getting rid of not only 802.11b but also the lower data > rates of g/a is absolutely a must for any area that has high client > density or bandwidth requirements. However, in some select locations and > applications there's too much organizational inertia / money tpreviously > provided, so here and there we'll still support it. (Also, > see previous Ticketmaster thread...) > > -Toivo > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[email protected]] On Behalf Of Kees Pronk > Sent: Wednesday, September 28, 2011 12:23 > To: [email protected] > Subject: [WIRELESS-LAN] Betr.: Re: [WIRELESS-LAN] Disappointing numbers > of 5ghz clients > > Toivo, > > You might want to consider to shut off 802.11b, it takes away valuable > 'airtime' from the rest of your clients by slowing down potentially all > of your AP's with management and beacon frames only for 13 clients...... > We did it via our captive portal, informing our clients about this. > Most devices were from our organisation so the users were happy to get > better gear..... > > best regards, Kees. > >>>> "Voll, Toivo" 9/28/2011 5:36 PM >>> > And here’s ours. We’re mostly dual-band, but not all N, and Band Select > is enabled. Note the number of 802.11b clients. > > [cid:[email protected]] > > Toivo Voll > Network Administrator > Information Technology Communications > University of South Florida > > > > --------------------------------------------------------------------------- > > Op deze e-mail zijn de volgende voorwaarden van toepassing: > The following conditions apply to this e-mail: > http://emaildisclaimer.avans.nl > -- > --------------------------------------------------------------Group > discussion list can be found at http://www.educause.edu/groups/. > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.1809 / Virus Database: 2085/4525 - Release Date: > 09/28/11 > > > --------------------------------------------------------------------------- > > Op deze e-mail zijn de volgende voorwaarden van toepassing: > The following conditions apply to this e-mail: > http://emaildisclaimer.avans.nl > --------------------------------------------------------------------------- > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > > --------------------------------------------------------------------------- > > Op deze e-mail zijn de volgende voorwaarden van toepassing: > The following conditions apply to this e-mail: > http://emaildisclaimer.avans.nl > --------------------------------------------------------------------------- > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.1809 / Virus Database: 2085/4529 - Release Date: 09/30/11 > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. 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