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 tied in custom systems to allow us to discontinue a service that's been previously 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/.
