Diana, Does stacking/layering mean that you are not using the single channel single SSID configuration that Meru is known for?
Chris Drever - PSU Networking -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:wireless-...@listserv.educause.edu] On Behalf Of Cortes, Diana Sent: Wednesday, August 19, 2009 5:40 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Large numbers of clients in one room We have 3 Meru APs covering 2 classrooms (capacity 100 each) where students use the WiFi to take exams online. We have had up to 90 users at a time using channel stacking/layering without a problem. Diana Cortes, CISSP, CWNA University of Miami IT - Telecommunications -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:wireless-...@listserv.educause.edu] On Behalf Of Rick Brown Sent: Wednesday, August 19, 2009 9:03 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Large numbers of clients in one room We actually solve the issue by using 802.11a for high density environments. We still provide G coverage but our policy has been that if you want guaranteed throughput and coverage in a classroom environment then an 11A AP should be installed for every 20-25 students. When we first implemented the policy there were a few issues because so many laptops came 11b/g only. But we're seeing more and more bring in tri-mode laptops so it's been less of an issue. I agree with the statement below. If necessary use only 3 11G AP's to get the folks that only have 11G cards but make sure you have enough 11A AP's to handle everyone. Rick Ken LeCompte wrote: > First, I don't think 50 users in a room is much to worry about for any > pair of modern access points. Unless the users are all going to be > high throughput users. For large open lecture halls being setup with > the highest throughput in mind my recommendation regardless of > equipment would be: > > 1. 3 channel(1,6,11) layout only with 2.4Ghz radios NO 4 > channel(1,4,8,11) layout in open spaces > 2. Ceiling mount antennas and use directional patch antennas NOT > omni-directional antennas > 3. Turn power down and don't be too worried about RF absorption, since > it will actually help focus your client radios onto the best access > point. > -- Richard E. (Rick) Brown Network Systems Engineer Communication Technologies Office of Information Technology N.C. State University (919) 515-5489 office (919) 515-1641 fax (919) 601-1651 cell rick_br...@ncsu.edu http://www.ahecta.org/ ********** 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/.
