One of the reason why we try to limit lower rates is because all BroadCast traffic is sent at the slowest rate (to make sure to reach all clients!)
So, even in a dense environment with clients only connected at high rates, slow BC traffic will slow you down Philippe Hanset Univ. of TN On Jun 1, 2011, at 1:35 PM, Jeffrey Sessler wrote: > Lee (and others), correct me if I'm wrong here: > > Assuming a wireless deployment engineered for density over coverage > (lots of APs for clients to connect to), there should be few and far > between cases where having all rates enabled would have an impact on > your system. That is, very small chance of distant clients, and enough > AP's to ensure that the 1/10 of 1% "B" clients have little to no impact. > > > Jeff > >>>> Lee H Badman <[email protected]> 5/31/2011 4:20 PM >>> > One of my long running beefs with controller based systems is that data > rates settings are per controller. Would be nice to be able to set the > two APs I might need for scanners to 11b rates, while letting the other > 498 do no less than 5.5. > > Perhaps I want too much... Sigh. This technology stuff... > > -Lee Badman > ________________________________________ > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [[email protected]] On Behalf Of Osborne, Bruce W > [[email protected]] > Sent: Tuesday, May 31, 2011 7:37 AM > To: [email protected] > Subject: Re: [WIRELESS-LAN] Dual radio APs, .11n on 2.4ghz radios or > not? > > In our 2.4 network here at Liberty, this is what we setup that works, > at least for Aruba APs. > > Transmit Rates: Only 5.5 & higher > Basic Rates: 2 & 5.5 > > I believe some gaming systems needed to see 2 Mbps as a basic rate, but > it did not need to be transmitted. > > Bruce Osborne > Wireless Network Engineer > IT Network Services > > (434) 592-4229 > > LIBERTY UNIVERSITY > 40 Years of Training Champions for Christ: 1971-2011 > > From: Voll, Toivo [mailto:[email protected]] > Sent: Friday, May 27, 2011 5:05 PM > Subject: Re: Dual radio APs, .11n on 2.4ghz radios or not? > > We’re also running into similar issues with purpose-built PDAs, of > the type used to scan tickets and inventory etc. Also, I seem to recall > that Nintendo DS will not associate if it doesn’t see the 1 Mbps > rates. How other universities are dealing with discontinuing support to > existing devices would be interesting to hear – or if there’s a > technical solution someone has devised for this. > > Toivo Voll > Network Administrator > Information Technology Communications > University of South Florida > > > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[email protected]] On Behalf Of Jeremy > Brake > Sent: Friday, May 27, 2011 16:29 > To: [email protected] > Subject: Re: [WIRELESS-LAN] Dual radio APs, .11n on 2.4ghz radios or > not? > > Rick, > > What are you doing for Wii users? The last time I checked they > required the lowest G speeds in order to associate. Please tell me they > fixed it with a new code release for the Wii’s…. > > http://www.networkworld.com/community/blog/dropping-legacy-80211-support-your-infrastruc > > > > > Jeremy > > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[email protected]] On Behalf Of Rick Brown > Sent: Thursday, May 26, 2011 2:07 PM > To: [email protected] > Subject: Re: [WIRELESS-LAN] Dual radio APs, .11n on 2.4ghz radios or > not? > > Craig, > > Enabling N on the 2.4 is not a lost cause and will help improve > performance if the coverage has been designed properly. As of June 1st > we are disabling 11B and all 11G rates below 12Mbps. > > In order to help steer people to the 5Ghz band we have created an SSID > that is only broadcast in that band and publicized it as higher > performance. > > Rick > > ********** > Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
