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:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Rick Brown Sent: Thursday, May 26, 2011 2:07 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 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 On 5/26/2011 2:22 PM, Craig Simons wrote: Design question for you all: Currently we have b/g enabled on our 2.4ghz radios and a/n on our 5ghz radios as carrot to entice users to buy/use a 5ghz capable wireless adapter. However, even with band preferencing enabled (or steering depending on the vendor), we still have a 75/25% split of 2.4 to 5 users. So my question is this, is there any point of enabling .11n on the 2.4 radio given that it will be in protection mode most of the time? As I can't really enable channel bonding on the 2.4 band to get the real speed increases of .11n, will users still get better performance overall. More importantly, would I get better performance in a user dense environment (more packets transmitted by .11n clients in the same time-slice thereby freeing up the channel for other clients, etc)? I'm of the opinion that guaranteeing great wireless performance is a lost cause on the 2.4 band, but I'd like to tweak as many things as possible to get the best performance in dense areas. Regards, Craig -- Craig Simons Network Operations Simon Fraser University Burnaby BC, Canada em. craigsim...@sfu.camailto:craigsim...@sfu.ca ph. 778-782-8036 ce. 604-649-7977 tw. twitter.com/simonscraig -- ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- [cid:image001.gif@01CC1C81.CE705910] ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. inline: image001.gif
RE: [WIRELESS-LAN] 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:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jeremy Brake Sent: Friday, May 27, 2011 16:29 To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 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:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Rick Brown Sent: Thursday, May 26, 2011 2:07 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 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
Re: [WIRELESS-LAN] Dual radio APs, .11n on 2.4ghz radios or not?
Well, you learn something new everyday. Gaming consoles are already a sore point being as they don't support WPA2-Enterprise, just PSK. In our case, thankfully, the connectivity for our residences is provided by a 3rd party, so it's someone else's problem... However, it's good to know there are more repercussions to disabling higher data rates other than smaller cells sizes. Taking steps to properly provide guaranteed bandwidth (I use the term guaranteed loosely of course) to a large lecture theatre full of dignitaries will ultimately trump the need to allow gaming devices in my opinion. But that's me talking, not my CIO ;) -- Craig Simons Network Operations Simon Fraser University Burnaby BC, Canada em. craigsim...@sfu.ca ph. 778-782-8036 ce. 604-649-7977 tw. twitter.com/simonscraig -- - Original Message - From: Toivo Voll to...@usf.edu To: WIRELESS-LAN@listserv.educause.edu Sent: Friday, 27 May, 2011 14:05:16 Subject: Re: [WIRELESS-LAN] 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:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jeremy Brake Sent: Friday, May 27, 2011 16:29 To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 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:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Rick Brown Sent: Thursday, May 26, 2011 2:07 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 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/.
