When we baked off technologies last year, this was a heavily weighted decision point for us at Columbia. The advantages of Meru's technology really shined in this area. To put it simply, "the B stayed B, and the G stayed G" Kind of like McDonald's slogan for the McDLT burger back in the 80's..."the hot stays hot and the cool stays cool."
Using Chariot, we were able to see/measure the differences in throughput before and after introducing a B client into a room full of G clients. More info available if anyone wants it. BJ Pinsky On 11/30/07 11:51 AM, "David Gillett" <[EMAIL PROTECTED]> wrote: > Supporting B clients means that the management messages -- SSID > beacon broadcasts, time slice assignments, etc -- have to be sent at > B data rates. Different manufacturers rate the impact of this as > anywhere from "slight" to "serious". > One has to wonder if those who rate it the latter haven't perhaps, > at some time (hopefully no longer in current shipping products) held > ALL traffic to B rates in that scenario. If client and base station > are both talking G, and RTS/CTS is enforced (always a good idea), > there's no reason that data cannot flow at G rates during that > client's time slices. And in any sane deployment, data transmission > should account for the majority of the airtime by a huge margin. > > David Gillett > > >> -----Original Message----- >> From: Lelio Fulgenzi [mailto:[EMAIL PROTECTED] >> Sent: Thursday, November 29, 2007 1:44 PM >> To: [email protected] >> Subject: Re: [WIRELESS-LAN] 802.11b Support >> >> I know that having B clients together with G clients brings >> down the speed, but is this AP, channel or SSID based? >> >> >> ----- Original Message ----- >> From: "Bruce Curtis" <[EMAIL PROTECTED]> >> To: <[email protected]> >> Sent: Wednesday, November 28, 2007 4:27 PM >> Subject: Re: [WIRELESS-LAN] 802.11b Support >> >> >>> On Nov 28, 2007, at 10:40 AM, Dennis Xu wrote: >>> >>>> Has anyone stopped supporting 802.11b in your network? Any >> issues with >>>> that? Got a lots of complains? Thanks! >>> >>> No, but when we originally enabled WPA2 on a separate >> SSID we set the >>> APs to only use 802.11g and 802.11a. The thought was any >> card that would >>> do WPA2 would have to be 802.11g capable. However it >> turns out that PDAs >>> are slower to support 802.11g and some support WPA2 even >> though their >>> card is only 802.11b. >>> >>>> >>>> >>>> Dennis Xu >>>> >>>> Network Analyst(CCS) >>>> >>>> University of Guelph >>>> >>>> 5198244120 x 56217 >>>> >>>> >>>> >>>> ********** Participation and subscription information for >> this EDUCAUSE >>>> Constituent Group discussion list can be found at http:// >>>> www.educause.edu/groups/. >>> >>> >>> --- >>> Bruce Curtis [EMAIL PROTECTED] >>> Certified NetAnalyst II 701-231-8527 >>> North Dakota State University >>> >>> ********** >>> 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/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
