RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Hi Lee, We have been running with the 1 and 2 Mbps data rates disabled for quite some time. The Meru stuff lets us do it by ESS, which actually ended up being very helpful because of one issue I found. We have a separate SSID for devices (iPods, gaming consoles, etc) that is using WEP. I started off having the 1 and 2 data rates disabled on this SSID as well, until I found that the Nintendo Wii and Nintendo DS did not like it. In doing a packet capture over the air, the Wii would just sit there doing probe requests, get probe responses from the APs, but then just keep on probe requesting. It would never try and associate. Turning the low data rates back on for this ESS resolved the issue. I contacted Nintendo about it and they said I may be correct, but said they didn't understand why I would want to turn those data rates off. Those were the only devices I found that had any issue. In general, I see the same things as you in terms of clients not connecting to distant APs. Take care, Matt Barber Network Analyst / PC Support Morrisville State College 315-684-6053 From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 7:57 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit I recall someone floating this not too long ago, but can't recall the responses. Being an LWAPP environment (currently) and growing fast in AP numbers and overall density, I'm considering disabling 1 and 2 Mbps data rates globally. I did this in an under the radar test for a couple of months on some of our busiest APs with no ill effects noted and what I see as fewer weak clients trying to get on board busy cells. Has anyone else taken this step? Curious in general, and in LWAPP., and if there have been any ill effects noted. One concern/peeve I have is that in LWAPP its controller wide- if there is some compelling reason to change the data rate on just a few APs in one area, you have no choice but to do the same for all APs on the controller. Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ** 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/.
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Hey Matt- good to hear from you. Thanks for answering the question, but now you have me curious- how do you keep "regular" users off of the SSID for games? -Lee -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Barber, Matt Sent: Thursday, May 29, 2008 8:13 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hi Lee, We have been running with the 1 and 2 Mbps data rates disabled for quite some time. The Meru stuff lets us do it by ESS, which actually ended up being very helpful because of one issue I found. We have a separate SSID for devices (iPods, gaming consoles, etc) that is using WEP. I started off having the 1 and 2 data rates disabled on this SSID as well, until I found that the Nintendo Wii and Nintendo DS did not like it. In doing a packet capture over the air, the Wii would just sit there doing probe requests, get probe responses from the APs, but then just keep on probe requesting. It would never try and associate. Turning the low data rates back on for this ESS resolved the issue. I contacted Nintendo about it and they said I may be correct, but said they didn't understand why I would want to turn those data rates off. Those were the only devices I found that had any issue. In general, I see the same things as you in terms of clients not connecting to distant APs. Take care, Matt Barber Network Analyst / PC Support Morrisville State College 315-684-6053 From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 7:57 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit I recall someone floating this not too long ago, but can't recall the responses. Being an LWAPP environment (currently) and growing fast in AP numbers and overall density, I'm considering disabling 1 and 2 Mbps data rates globally. I did this in an under the radar test for a couple of months on some of our busiest APs with no ill effects noted and what I see as fewer weak clients trying to get on board busy cells. Has anyone else taken this step? Curious in general, and in LWAPP., and if there have been any ill effects noted. One concern/peeve I have is that in LWAPP its controller wide- if there is some compelling reason to change the data rate on just a few APs in one area, you have no choice but to do the same for all APs on the controller. Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ** 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/. No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.24.2/1471 - Release Date: 5/28/2008 5:33 PM ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Hi Lee, The devices SSID is "secured" with WEP and a MAC filter. Students and faculty use a webform to register their MAC address with me. Having the WEP key at least prevents clients from trying to connect to whatever clear SSID they see. So far, this is working very well. Matt -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 8:33 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hey Matt- good to hear from you. Thanks for answering the question, but now you have me curious- how do you keep "regular" users off of the SSID for games? -Lee -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Barber, Matt Sent: Thursday, May 29, 2008 8:13 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hi Lee, We have been running with the 1 and 2 Mbps data rates disabled for quite some time. The Meru stuff lets us do it by ESS, which actually ended up being very helpful because of one issue I found. We have a separate SSID for devices (iPods, gaming consoles, etc) that is using WEP. I started off having the 1 and 2 data rates disabled on this SSID as well, until I found that the Nintendo Wii and Nintendo DS did not like it. In doing a packet capture over the air, the Wii would just sit there doing probe requests, get probe responses from the APs, but then just keep on probe requesting. It would never try and associate. Turning the low data rates back on for this ESS resolved the issue. I contacted Nintendo about it and they said I may be correct, but said they didn't understand why I would want to turn those data rates off. Those were the only devices I found that had any issue. In general, I see the same things as you in terms of clients not connecting to distant APs. Take care, Matt Barber Network Analyst / PC Support Morrisville State College 315-684-6053 From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 7:57 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit I recall someone floating this not too long ago, but can't recall the responses. Being an LWAPP environment (currently) and growing fast in AP numbers and overall density, I'm considering disabling 1 and 2 Mbps data rates globally. I did this in an under the radar test for a couple of months on some of our busiest APs with no ill effects noted and what I see as fewer weak clients trying to get on board busy cells. Has anyone else taken this step? Curious in general, and in LWAPP., and if there have been any ill effects noted. One concern/peeve I have is that in LWAPP its controller wide- if there is some compelling reason to change the data rate on just a few APs in one area, you have no choice but to do the same for all APs on the controller. Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ** 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/. No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.24.2/1471 - Release Date: 5/28/2008 5:33 PM ** 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/.
Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
On Thu, May 29, 2008 at 8:13 AM, Barber, Matt <[EMAIL PROTECTED]> wrote: > > > I contacted Nintendo about it and they said I may be correct, but said they > didn't understand why I would want to turn those data rates off. > This from a company that, and I quote, said "The reason the Nintendo DS is compatible with WEP, and not WPA, is that we found WEP to be the most prevalent standard for securing wi-fi connections." I'm sure they have a very good understanding of wireless protocols, they must be right. quote taken from http://missig.org/julian/blog/2005/11/16/nintendo-ds-supporting-wpa/ since the nintendo support forum was replaced, and that gem of knowledge will probably not be repeated by anyone from Nintendo corporate again. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
We disabled 1 and 2Mbps two years ago and we haven't had any issues. Unlike Matt, we do not support gaming devices on our wireless (unless they support WPA-Enterprise/TKIP). We have a pretty dense deployment and disabling these lower data rates allowed us to reduce the size of the coverage zones, improve throughput and minimize hidden node problems. Hector Rios Louisiana State University From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 6:57 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit I recall someone floating this not too long ago, but can't recall the responses. Being an LWAPP environment (currently) and growing fast in AP numbers and overall density, I'm considering disabling 1 and 2 Mbps data rates globally. I did this in an under the radar test for a couple of months on some of our busiest APs with no ill effects noted and what I see as fewer weak clients trying to get on board busy cells. Has anyone else taken this step? Curious in general, and in LWAPP., and if there have been any ill effects noted. One concern/peeve I have is that in LWAPP its controller wide- if there is some compelling reason to change the data rate on just a few APs in one area, you have no choice but to do the same for all APs on the controller. Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ** 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/.
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Thanks, Hector- are you guys LWAPP by any chance? Lee -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Hector J Rios Sent: Thursday, May 29, 2008 10:30 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit We disabled 1 and 2Mbps two years ago and we haven't had any issues. Unlike Matt, we do not support gaming devices on our wireless (unless they support WPA-Enterprise/TKIP). We have a pretty dense deployment and disabling these lower data rates allowed us to reduce the size of the coverage zones, improve throughput and minimize hidden node problems. Hector Rios Louisiana State University From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 6:57 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit I recall someone floating this not too long ago, but can't recall the responses. Being an LWAPP environment (currently) and growing fast in AP numbers and overall density, I'm considering disabling 1 and 2 Mbps data rates globally. I did this in an under the radar test for a couple of months on some of our busiest APs with no ill effects noted and what I see as fewer weak clients trying to get on board busy cells. Has anyone else taken this step? Curious in general, and in LWAPP., and if there have been any ill effects noted. One concern/peeve I have is that in LWAPP its controller wide- if there is some compelling reason to change the data rate on just a few APs in one area, you have no choice but to do the same for all APs on the controller. Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ** 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/. No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.24.3/1472 - Release Date: 5/29/2008 7:27 AM ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Yes -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 9:33 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Thanks, Hector- are you guys LWAPP by any chance? Lee -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Hector J Rios Sent: Thursday, May 29, 2008 10:30 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit We disabled 1 and 2Mbps two years ago and we haven't had any issues. Unlike Matt, we do not support gaming devices on our wireless (unless they support WPA-Enterprise/TKIP). We have a pretty dense deployment and disabling these lower data rates allowed us to reduce the size of the coverage zones, improve throughput and minimize hidden node problems. Hector Rios Louisiana State University From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 6:57 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit I recall someone floating this not too long ago, but can't recall the responses. Being an LWAPP environment (currently) and growing fast in AP numbers and overall density, I'm considering disabling 1 and 2 Mbps data rates globally. I did this in an under the radar test for a couple of months on some of our busiest APs with no ill effects noted and what I see as fewer weak clients trying to get on board busy cells. Has anyone else taken this step? Curious in general, and in LWAPP., and if there have been any ill effects noted. One concern/peeve I have is that in LWAPP its controller wide- if there is some compelling reason to change the data rate on just a few APs in one area, you have no choice but to do the same for all APs on the controller. Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ** 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/. No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.24.3/1472 - Release Date: 5/29/2008 7:27 AM ** 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/.
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Matt & Lee - At Emory, we've disabled the 1 & 2 Mbps data rates on our healthcare wireless network for our VoIP over Wi-Fi and electronic medical records SSIDs in 2 of our hospitals. The hospitals are "hot" environments - lots of APs. Doing so improved the quality of our wireless voice traffic tremendously. It also improved our electronic medical records connectivity as well - less roaming between APs means fewer authentications. We've been running with the disabled data rates since last fall with no problems. We have not done this (yet) on the academic network, but are looking into it at certain high density locations. The Aruba gear we are running allows doing this on a per SSID and per AP (or per building) basis - very flexible. We haven't done this for our guest network, even in those hot environments. BTW - for guest authentication, we use a captive portal, but have MAC auth for pre- registered iPhones, gaming devices, and PDAs to bypass the captive portal. Users must bring the device to our clean-room to get the device registered and we only register devices that can't support WPA/WPA2-Enterprise (802.1x). >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Barber, Matt [EMAIL PROTECTED] Sent: Thursday, May 29, 2008 8:13 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hi Lee, We have been running with the 1 and 2 Mbps data rates disabled for quite some time. The Meru stuff lets us do it by ESS, which actually ended up being very helpful because of one issue I found. We have a separate SSID for devices (iPods, gaming consoles, etc) that is using WEP. I started off having the 1 and 2 data rates disabled on this SSID as well, until I found that the Nintendo Wii and Nintendo DS did not like it. In doing a packet capture over the air, the Wii would just sit there doing probe requests, get probe responses from the APs, but then just keep on probe requesting. It would never try and associate. Turning the low data rates back on for this ESS resolved the issue. I contacted Nintendo about it and they said I may be correct, but said they didn’t understand why I would want to turn those data rates off. Those were the only devices I found that had any issue. In general, I see the same things as you in terms of clients not connecting to distant APs. Take care, Matt Barber Network Analyst / PC Support Morrisville State College 315-684-6053 From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 7:57 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit I recall someone floating this not too long ago, but can’t recall the responses. Being an LWAPP environment (currently) and growing fast in AP numbers and overall density, I’m considering disabling 1 and 2 Mbps data rates globally. I did this in an under the radar test for a couple of months on some of our busiest APs with no ill effects noted and what I see as fewer weak clients trying to get on board busy cells. Has anyone else taken this step? Curious in general, and in LWAPP., and if there have been any ill effects noted. One concern/peeve I have is that in LWAPP its controller wide- if there is some compelling reason to change the data rate on just a few APs in one area, you have no choice but to do the same for all APs on the controller. Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ** 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/. This e-mail message (including any attachments) is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message (including any attachments) is strictly prohibited. If you have received this message in error, please contact the sender by reply e-mail message and destroy all copies of the original message (including attachments). ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
We tried this out on a couple of LWAPP controllers with several busy buildings in April and it appeared to significantly improve the channel performance. Our rough measurements of AP co-channel interference showed a reduction in CCI (less channel time being occupied by beacons), and iperf throughput tests also showed improvement. One iperf test we use is to run a 60 second TCP test with 1 second reporting intervals to see how stable the throughput is, and we saw a significant improvement in speed and stability at the heavily loaded test sites. The channel performance improvement was so impressive that after a couple of weeks of testing we decided to disable 1 and 2 Mbps across 20 LWAPP controllers (4.1.185.0 code) supporting 2,300 APs towards the end of April. We made it through the busiest time of the semester with no significant issues and iperf tests showed improved performance at heavily loaded sites. We have not made this change at the two sites where we know there are wireless handhelds in use (used for things like ticket purchases and concessions). We need to do more testing at those sites, since we wouldn't want to change their operations without verifying that their handhelds would work OK first. We don't have any formal VoWLAN system in use, so we don't have any data on those devices. The other mobile devices that we have tested (iPaq, iPhone) haven't had any problems. The rest of the campus sees approx 50,000 unique users of the wireless system in a semester. In that swamp we have found one issue so far. We have identified what looks like a driver problem with a version of MacOS (older PowerBooks running OSX 10.4 Tiger that cannot upgrade) in which the laptop will not associate with the WPA2 SSID but it *will* associate with the open SSID (guest access through a Web portal for authentication). Weird. Since they still work on the open SSID it isn't a major problem for them. -Charles Charles E. Spurgeon / UTnet UT Austin ITS / Networking [EMAIL PROTECTED] / 512.475.9265 On Thu, May 29, 2008 at 07:56:48AM -0400, Lee H Badman wrote: > >I recall someone floating this not too long ago, but can't recall the >responses. > > >Being an LWAPP environment (currently) and growing fast in AP numbers >and overall density, I'm considering disabling 1 and 2 Mbps data rates >globally. I did this in an under the radar test for a couple of months >on some of our busiest APs with no ill effects noted and what I see as >fewer weak clients trying to get on board busy cells. > > >Has anyone else taken this step? Curious in general, and in LWAPP., >and if there have been any ill effects noted. One concern/peeve I have >is that in LWAPP its controller wide- if there is some compelling >reason to change the data rate on just a few APs in one area, you have >no choice but to do the same for all APs on the controller. > > >Thanks- > > >Lee > > >Lee H. Badman > >Wireless/Network Engineer > >Information Technology and Services > >Syracuse University > >315 443-3003 > > >** 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/.
Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Lee, We mixed Aruba 125 (a/b/g/n) with Proxim 4000 (a/b/g) in a dense environment. About 160 users using 7 * Aruba 125 but surrounded on floors above and below by Proxim 4000. We litteraly had to disable 1 and 2 Mbps on the Aruba to have a certain quality of service. This was actually done by the Aruba engineers that came on site. Since we do mobility via a large layer2 we end up with a lot of broadcast. Broadcasting being done at the lowest rate, disabling 1 and 2 Mbps helps quite a bit! We have not found a way to disable 1 and 2 Mbps on the Proxim! Philippe -- Philippe Hanset University of Tennessee, Knoxville Office of Information Technology Network Services 108 James D Hoskins Library 1400 Cumberland Ave Knoxville, TN 37996 Tel: 1-865-9746555 -- On Thu, 29 May 2008, Lee H Badman wrote: > Thanks, Hector- are you guys LWAPP by any chance? > > Lee > > -Original Message- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[EMAIL PROTECTED] On Behalf Of Hector J Rios > Sent: Thursday, May 29, 2008 10:30 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit > > We disabled 1 and 2Mbps two years ago and we haven't had any issues. > Unlike Matt, we do not support gaming devices on our wireless (unless > they support WPA-Enterprise/TKIP). > > > > We have a pretty dense deployment and disabling these lower data rates > allowed us to reduce the size of the coverage zones, improve throughput > and minimize hidden node problems. > > > > Hector Rios > > Louisiana State University > > > > > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:[EMAIL PROTECTED] On Behalf Of Lee H Badman > Sent: Thursday, May 29, 2008 6:57 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit > > > > I recall someone floating this not too long ago, but can't recall the > responses. > > > > Being an LWAPP environment (currently) and growing fast in AP numbers > and overall density, I'm considering disabling 1 and 2 Mbps data rates > globally. I did this in an under the radar test for a couple of months > on some of our busiest APs with no ill effects noted and what I see as > fewer weak clients trying to get on board busy cells. > > > > Has anyone else taken this step? Curious in general, and in LWAPP., and > if there have been any ill effects noted. One concern/peeve I have is > that in LWAPP its controller wide- if there is some compelling reason to > change the data rate on just a few APs in one area, you have no choice > but to do the same for all APs on the controller. > > > > Thanks- > > > > Lee > > > > Lee H. Badman > > Wireless/Network Engineer > > Information Technology and Services > > Syracuse University > > 315 443-3003 > > > > ** 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/. > > No virus found in this incoming message. > Checked by AVG. > Version: 8.0.100 / Virus Database: 269.24.3/1472 - Release Date: > 5/29/2008 7:27 AM > > ** > 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/.
Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Stan, Are you using Vocera for VoIP over Wifi? Thanks, BJ On May 29, 2008, at 11:24 AM, Brooks, Stan wrote: Matt & Lee - At Emory, we've disabled the 1 & 2 Mbps data rates on our healthcare wireless network for our VoIP over Wi-Fi and electronic medical records SSIDs in 2 of our hospitals. The hospitals are "hot" environments - lots of APs. Doing so improved the quality of our wireless voice traffic tremendously. It also improved our electronic medical records connectivity as well - less roaming between APs means fewer authentications. We've been running with the disabled data rates since last fall with no problems. We have not done this (yet) on the academic network, but are looking into it at certain high density locations. The Aruba gear we are running allows doing this on a per SSID and per AP (or per building) basis - very flexible. We haven't done this for our guest network, even in those hot environments. BTW - for guest authentication, we use a captive portal, but have MAC auth for pre- registered iPhones, gaming devices, and PDAs to bypass the captive portal. Users must bring the device to our clean-room to get the device registered and we only register devices that can't support WPA/WPA2-Enterprise (802.1x). -> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] ] On Behalf Of Barber, Matt [EMAIL PROTECTED] Sent: Thursday, May 29, 2008 8:13 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hi Lee, We have been running with the 1 and 2 Mbps data rates disabled for quite some time. The Meru stuff lets us do it by ESS, which actually ended up being very helpful because of one issue I found. We have a separate SSID for devices (iPods, gaming consoles, etc) that is using WEP. I started off having the 1 and 2 data rates disabled on this SSID as well, until I found that the Nintendo Wii and Nintendo DS did not like it. In doing a packet capture over the air, the Wii would just sit there doing probe requests, get probe responses from the APs, but then just keep on probe requesting. It would never try and associate. Turning the low data rates back on for this ESS resolved the issue. I contacted Nintendo about it and they said I may be correct, but said they didn’t understand why I would want to turn those data rates off. Those were the only devices I found that had any issue. In general, I see the same things as you in terms of clients not connecting to distant APs. Take care, Matt Barber Network Analyst / PC Support Morrisville State College 315-684-6053 From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU ] On Behalf Of Lee H Badman Sent: Thursday, May 29, 2008 7:57 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit I recall someone floating this not too long ago, but can’t recall the responses. Being an LWAPP environment (currently) and growing fast in AP numbers and overall density, I’m considering disabling 1 and 2 Mbps data rates globally. I did this in an under the radar test for a couple of months on some of our busiest APs with no ill effects noted and what I see as fewer weak clients trying to get on board busy cells. Has anyone else taken this step? Curious in general, and in LWAPP., and if there have been any ill effects noted. One concern/peeve I have is that in LWAPP its controller wide- if there is some compelling reason to change the data rate on just a few APs in one area, you have no choice but to do the same for all APs on the controller. Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Syracuse University 315 443-3003 ** 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/ . This e-mail message (including any attachments) is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message (including any attachments) is strictly prohibited. If you have received this message in error, please contact the sender by reply e-mail message and destroy all copies of the original message (including attachments). ** Participation and s
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Brandon, We are using Avaya (SpectraLInk/PolyComm) handsets for our VoIP over Wi-Fi. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Brandon Pinsky [EMAIL PROTECTED] Sent: Thursday, May 29, 2008 1:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Stan, Are you using Vocera for VoIP over Wifi? Thanks, BJ On May 29, 2008, at 11:24 AM, Brooks, Stan wrote: > Matt & Lee - > > At Emory, we've disabled the 1 & 2 Mbps data rates on our healthcare > wireless network for our VoIP over Wi-Fi and electronic medical > records SSIDs in 2 of our hospitals. The hospitals are "hot" > environments - lots of APs. Doing so improved the quality of our > wireless voice traffic tremendously. It also improved our > electronic medical records connectivity as well - less roaming > between APs means fewer authentications. We've been running with > the disabled data rates since last fall with no problems. > > We have not done this (yet) on the academic network, but are looking > into it at certain high density locations. The Aruba gear we are > running allows doing this on a per SSID and per AP (or per > building) basis - very flexible. > > We haven't done this for our guest network, even in those hot > environments. BTW - for guest authentication, we use a captive > portal, but have MAC auth for pre- registered iPhones, gaming > devices, and PDAs to bypass the captive portal. Users must bring > the device to our clean-room to get the device registered and we > only register devices that can't support WPA/WPA2-Enterprise (802.1x). > >>> -> Stan Brooks - CWNA/CWSP > Emory University > Network Communications Division > 404.727.0226 > [EMAIL PROTECTED] > AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL > PROTECTED] > ] On Behalf Of Barber, Matt [EMAIL PROTECTED] > Sent: Thursday, May 29, 2008 8:13 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit > > Hi Lee, > > We have been running with the 1 and 2 Mbps data rates disabled for > quite some time. The Meru stuff lets us do it by ESS, which > actually ended up being very helpful because of one issue I found. > > We have a separate SSID for devices (iPods, gaming consoles, etc) > that is using WEP. I started off having the 1 and 2 data rates > disabled on this SSID as well, until I found that the Nintendo Wii > and Nintendo DS did not like it. In doing a packet capture over the > air, the Wii would just sit there doing probe requests, get probe > responses from the APs, but then just keep on probe requesting. It > would never try and associate. Turning the low data rates back on > for this ESS resolved the issue. > > I contacted Nintendo about it and they said I may be correct, but > said they didn’t understand why I would want to turn those data > rates off. > > Those were the only devices I found that had any issue. In general, > I see the same things as you in terms of clients not connecting to > distant APs. > > Take care, > > Matt Barber > Network Analyst / PC Support > Morrisville State College > 315-684-6053 > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > ] On Behalf Of Lee H Badman > Sent: Thursday, May 29, 2008 7:57 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit > > I recall someone floating this not too long ago, but can’t recall > the responses. > > Being an LWAPP environment (currently) and growing fast in AP > numbers and overall density, I’m considering disabling 1 and 2 Mbps > data rates globally. I did this in an under the radar test for a > couple of months on some of our busiest APs with no ill effects > noted and what I see as fewer weak clients trying to get on board > busy cells. > > Has anyone else taken this step? Curious in general, and in LWAPP., > and if there have been any ill effects noted. One concern/peeve I > have is that in LWAPP its controller wide- if there is some > compelling reason to change the data rate on just a few APs in one > area, you have no choice but to do the same for all APs on the > controller. > > Thanks- > > Lee > > Lee H. Badman > Wireless/Netwo
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Hey Stan, What's been your experience with the PolyComm phones? Are you using the 8000 Series 802.11a phones? Their minimum RSSI spec (-60) seems to be considerably lower than the Cisco 7921G. I'm assuming you are using a Cisco infrastructure (apologies if not). Do these phones truly support CCKM (Cisco Fast Roaming)? They indicate as much but don't support the requisite 802.1x mechanisms (LEAP/EAP-FAST). Can they interoperate with WMM or did you have to enable SVP QoS? Thanks, --Bruce Johnson -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Brooks, Stan Sent: Monday, June 02, 2008 11:21 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Brandon, We are using Avaya (SpectraLInk/PolyComm) handsets for our VoIP over Wi-Fi. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Brandon Pinsky [EMAIL PROTECTED] Sent: Thursday, May 29, 2008 1:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Stan, Are you using Vocera for VoIP over Wifi? Thanks, BJ On May 29, 2008, at 11:24 AM, Brooks, Stan wrote: > Matt & Lee - > > At Emory, we've disabled the 1 & 2 Mbps data rates on our healthcare > wireless network for our VoIP over Wi-Fi and electronic medical > records SSIDs in 2 of our hospitals. The hospitals are "hot" > environments - lots of APs. Doing so improved the quality of our > wireless voice traffic tremendously. It also improved our > electronic medical records connectivity as well - less roaming > between APs means fewer authentications. We've been running with > the disabled data rates since last fall with no problems. > > We have not done this (yet) on the academic network, but are looking > into it at certain high density locations. The Aruba gear we are > running allows doing this on a per SSID and per AP (or per > building) basis - very flexible. > > We haven't done this for our guest network, even in those hot > environments. BTW - for guest authentication, we use a captive > portal, but have MAC auth for pre- registered iPhones, gaming > devices, and PDAs to bypass the captive portal. Users must bring > the device to our clean-room to get the device registered and we > only register devices that can't support WPA/WPA2-Enterprise (802.1x). > >>> -> Stan Brooks - CWNA/CWSP > Emory University > Network Communications Division > 404.727.0226 > [EMAIL PROTECTED] > AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] > ] On Behalf Of Barber, Matt [EMAIL PROTECTED] > Sent: Thursday, May 29, 2008 8:13 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit > > Hi Lee, > > We have been running with the 1 and 2 Mbps data rates disabled for > quite some time. The Meru stuff lets us do it by ESS, which > actually ended up being very helpful because of one issue I found. > > We have a separate SSID for devices (iPods, gaming consoles, etc) > that is using WEP. I started off having the 1 and 2 data rates > disabled on this SSID as well, until I found that the Nintendo Wii > and Nintendo DS did not like it. In doing a packet capture over the > air, the Wii would just sit there doing probe requests, get probe > responses from the APs, but then just keep on probe requesting. It > would never try and associate. Turning the low data rates back on > for this ESS resolved the issue. > > I contacted Nintendo about it and they said I may be correct, but > said they didn't understand why I would want to turn those data > rates off. > > Those were the only devices I found that had any issue. In general, > I see the same things as you in terms of clients not connecting to > distant APs. > > Take care, > > Matt Barber > Network Analyst / PC Support > Morrisville State College > 315-684-6053 > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > ] On Behalf Of Lee H Badman > Sent: Thursday, May 29, 2008 7:57 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit > > I recall someone floating this not too long ago, but can't recall > the responses. > > Being an L
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Bruce, We use Aruba for our wireless infrastructure. We are using the Avaya 3641's - .11b/g phones, not a. We use WPA2-PSK for "security" as the phones don't support an 802.1x. Yes, we do use SVP (or in Avaya terms the AVPP) for QoS - but that limits us to a single layer 2 VLAN for our phones. I'd much prefer a SIP-based phone that supports routing of the traffic beyond the phones' subnet. I'm not sure if they support WMM - I don't think so - and not sure about CCKM as we are not a Cisco shop for wireless. We did have some problems when we first moved to the 3641's with roaming - they couldn't make up their mind wich AP to stick with. This has been mostly fixed with newer handset code. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Johnson, Bruce T [EMAIL PROTECTED] Sent: Monday, June 02, 2008 11:37 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hey Stan, What's been your experience with the PolyComm phones? Are you using the 8000 Series 802.11a phones? Their minimum RSSI spec (-60) seems to be considerably lower than the Cisco 7921G. I'm assuming you are using a Cisco infrastructure (apologies if not). Do these phones truly support CCKM (Cisco Fast Roaming)? They indicate as much but don't support the requisite 802.1x mechanisms (LEAP/EAP-FAST). Can they interoperate with WMM or did you have to enable SVP QoS? Thanks, --Bruce Johnson -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Brooks, Stan Sent: Monday, June 02, 2008 11:21 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Brandon, We are using Avaya (SpectraLInk/PolyComm) handsets for our VoIP over Wi-Fi. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Brandon Pinsky [EMAIL PROTECTED] Sent: Thursday, May 29, 2008 1:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Stan, Are you using Vocera for VoIP over Wifi? Thanks, BJ On May 29, 2008, at 11:24 AM, Brooks, Stan wrote: > Matt & Lee - > > At Emory, we've disabled the 1 & 2 Mbps data rates on our healthcare > wireless network for our VoIP over Wi-Fi and electronic medical > records SSIDs in 2 of our hospitals. The hospitals are "hot" > environments - lots of APs. Doing so improved the quality of our > wireless voice traffic tremendously. It also improved our > electronic medical records connectivity as well - less roaming > between APs means fewer authentications. We've been running with > the disabled data rates since last fall with no problems. > > We have not done this (yet) on the academic network, but are looking > into it at certain high density locations. The Aruba gear we are > running allows doing this on a per SSID and per AP (or per > building) basis - very flexible. > > We haven't done this for our guest network, even in those hot > environments. BTW - for guest authentication, we use a captive > portal, but have MAC auth for pre- registered iPhones, gaming > devices, and PDAs to bypass the captive portal. Users must bring > the device to our clean-room to get the device registered and we > only register devices that can't support WPA/WPA2-Enterprise (802.1x). > >>> -> Stan Brooks - CWNA/CWSP > Emory University > Network Communications Division > 404.727.0226 > [EMAIL PROTECTED] > AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] > ] On Behalf Of Barber, Matt [EMAIL PROTECTED] > Sent: Thursday, May 29, 2008 8:13 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit > > Hi Lee, > > We have been running with the 1 and 2 Mbps data rates disabled for > quite some time. The Meru stuff lets us do it by ESS, which > actually ended up being very helpful because of one issue I found. > > We have a separate SSID for devices (iPods, gaming consoles, etc) > that is using WEP. I started off having the 1 and 2 data rates > disab
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Well, SVP is capable of being routed, but I don't know of any installations that do. It requires multicast be enabled on the VoIP over Wi-Fi subnets as the handsets find the AVPP (Avaya Voice Priority Processor) using a multicast/broadcast address. The AVPP really doesn't buy you much in a centralized controller-based wireless environment since the controllers do a lot of what the AVPP does (QoS). It's just needed in the Avaya environment... >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Johnson, Bruce T [EMAIL PROTECTED] Sent: Monday, June 02, 2008 12:12 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Appreciate the info. That's interesting about AVPP/SVP not being routable. Thanks very much Stan. Bruce Johnson Network Engineer Partners Healthcare 617-726-9662 mailto: [EMAIL PROTECTED] -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv on behalf of Brooks, Stan Sent: Mon 6/2/2008 11:51 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Bruce, We use Aruba for our wireless infrastructure. We are using the Avaya 3641's - .11b/g phones, not a. We use WPA2-PSK for "security" as the phones don't support an 802.1x. Yes, we do use SVP (or in Avaya terms the AVPP) for QoS - but that limits us to a single layer 2 VLAN for our phones. I'd much prefer a SIP-based phone that supports routing of the traffic beyond the phones' subnet. I'm not sure if they support WMM - I don't think so - and not sure about CCKM as we are not a Cisco shop for wireless. We did have some problems when we first moved to the 3641's with roaming - they couldn't make up their mind wich AP to stick with. This has been mostly fixed with newer handset code. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Johnson, Bruce T [EMAIL PROTECTED] Sent: Monday, June 02, 2008 11:37 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hey Stan, What's been your experience with the PolyComm phones? Are you using the 8000 Series 802.11a phones? Their minimum RSSI spec (-60) seems to be considerably lower than the Cisco 7921G. I'm assuming you are using a Cisco infrastructure (apologies if not). Do these phones truly support CCKM (Cisco Fast Roaming)? They indicate as much but don't support the requisite 802.1x mechanisms (LEAP/EAP-FAST). Can they interoperate with WMM or did you have to enable SVP QoS? Thanks, --Bruce Johnson -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Brooks, Stan Sent: Monday, June 02, 2008 11:21 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Brandon, We are using Avaya (SpectraLInk/PolyComm) handsets for our VoIP over Wi-Fi. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Brandon Pinsky [EMAIL PROTECTED] Sent: Thursday, May 29, 2008 1:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Stan, Are you using Vocera for VoIP over Wifi? Thanks, BJ On May 29, 2008, at 11:24 AM, Brooks, Stan wrote: > Matt & Lee - > > At Emory, we've disabled the 1 & 2 Mbps data rates on our healthcare > wireless network for our VoIP over Wi-Fi and electronic medical > records SSIDs in 2 of our hospitals. The hospitals are "hot" > environments - lots of APs. Doing so improved the quality of our > wireless voice traffic tremendously. It also improved our > electronic medical records connectivity as well - less roaming > between APs means fewer authentications. We've been running with > the disabled data rates since last fall with no problems. > > We have not done this (yet) on the academic network, but are looking > into it at certain high density locations. The Aruba gear we are > runni
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Appreciate the info. That's interesting about AVPP/SVP not being routable. Thanks very much Stan. Bruce Johnson Network Engineer Partners Healthcare 617-726-9662 mailto: [EMAIL PROTECTED] -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv on behalf of Brooks, Stan Sent: Mon 6/2/2008 11:51 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Bruce, We use Aruba for our wireless infrastructure. We are using the Avaya 3641's - .11b/g phones, not a. We use WPA2-PSK for "security" as the phones don't support an 802.1x. Yes, we do use SVP (or in Avaya terms the AVPP) for QoS - but that limits us to a single layer 2 VLAN for our phones. I'd much prefer a SIP-based phone that supports routing of the traffic beyond the phones' subnet. I'm not sure if they support WMM - I don't think so - and not sure about CCKM as we are not a Cisco shop for wireless. We did have some problems when we first moved to the 3641's with roaming - they couldn't make up their mind wich AP to stick with. This has been mostly fixed with newer handset code. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Johnson, Bruce T [EMAIL PROTECTED] Sent: Monday, June 02, 2008 11:37 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hey Stan, What's been your experience with the PolyComm phones? Are you using the 8000 Series 802.11a phones? Their minimum RSSI spec (-60) seems to be considerably lower than the Cisco 7921G. I'm assuming you are using a Cisco infrastructure (apologies if not). Do these phones truly support CCKM (Cisco Fast Roaming)? They indicate as much but don't support the requisite 802.1x mechanisms (LEAP/EAP-FAST). Can they interoperate with WMM or did you have to enable SVP QoS? Thanks, --Bruce Johnson -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Brooks, Stan Sent: Monday, June 02, 2008 11:21 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Brandon, We are using Avaya (SpectraLInk/PolyComm) handsets for our VoIP over Wi-Fi. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Brandon Pinsky [EMAIL PROTECTED] Sent: Thursday, May 29, 2008 1:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Stan, Are you using Vocera for VoIP over Wifi? Thanks, BJ On May 29, 2008, at 11:24 AM, Brooks, Stan wrote: > Matt & Lee - > > At Emory, we've disabled the 1 & 2 Mbps data rates on our healthcare > wireless network for our VoIP over Wi-Fi and electronic medical > records SSIDs in 2 of our hospitals. The hospitals are "hot" > environments - lots of APs. Doing so improved the quality of our > wireless voice traffic tremendously. It also improved our > electronic medical records connectivity as well - less roaming > between APs means fewer authentications. We've been running with > the disabled data rates since last fall with no problems. > > We have not done this (yet) on the academic network, but are looking > into it at certain high density locations. The Aruba gear we are > running allows doing this on a per SSID and per AP (or per > building) basis - very flexible. > > We haven't done this for our guest network, even in those hot > environments. BTW - for guest authentication, we use a captive > portal, but have MAC auth for pre- registered iPhones, gaming > devices, and PDAs to bypass the captive portal. Users must bring > the device to our clean-room to get the device registered and we > only register devices that can't support WPA/WPA2-Enterprise (802.1x). > >>> -> Stan Brooks - CWNA/CWSP > Emory University > Network Communications Division > 404.727.0226 > [EMAIL PROTECTED] > AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] > ] On Behalf Of Barber, Matt [EMAIL PROTECTED] > Sent: Thursday, May 29, 2008
RE: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit
Great info to know. Thanks again Stan. --Bruce -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Brooks, Stan Sent: Monday, June 02, 2008 12:29 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Well, SVP is capable of being routed, but I don't know of any installations that do. It requires multicast be enabled on the VoIP over Wi-Fi subnets as the handsets find the AVPP (Avaya Voice Priority Processor) using a multicast/broadcast address. The AVPP really doesn't buy you much in a centralized controller-based wireless environment since the controllers do a lot of what the AVPP does (QoS). It's just needed in the Avaya environment... >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Johnson, Bruce T [EMAIL PROTECTED] Sent: Monday, June 02, 2008 12:12 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Appreciate the info. That's interesting about AVPP/SVP not being routable. Thanks very much Stan. Bruce Johnson Network Engineer Partners Healthcare 617-726-9662 mailto: [EMAIL PROTECTED] -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv on behalf of Brooks, Stan Sent: Mon 6/2/2008 11:51 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Bruce, We use Aruba for our wireless infrastructure. We are using the Avaya 3641's - .11b/g phones, not a. We use WPA2-PSK for "security" as the phones don't support an 802.1x. Yes, we do use SVP (or in Avaya terms the AVPP) for QoS - but that limits us to a single layer 2 VLAN for our phones. I'd much prefer a SIP-based phone that supports routing of the traffic beyond the phones' subnet. I'm not sure if they support WMM - I don't think so - and not sure about CCKM as we are not a Cisco shop for wireless. We did have some problems when we first moved to the 3641's with roaming - they couldn't make up their mind wich AP to stick with. This has been mostly fixed with newer handset code. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Johnson, Bruce T [EMAIL PROTECTED] Sent: Monday, June 02, 2008 11:37 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Hey Stan, What's been your experience with the PolyComm phones? Are you using the 8000 Series 802.11a phones? Their minimum RSSI spec (-60) seems to be considerably lower than the Cisco 7921G. I'm assuming you are using a Cisco infrastructure (apologies if not). Do these phones truly support CCKM (Cisco Fast Roaming)? They indicate as much but don't support the requisite 802.1x mechanisms (LEAP/EAP-FAST). Can they interoperate with WMM or did you have to enable SVP QoS? Thanks, --Bruce Johnson -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[EMAIL PROTECTED] On Behalf Of Brooks, Stan Sent: Monday, June 02, 2008 11:21 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Brandon, We are using Avaya (SpectraLInk/PolyComm) handsets for our VoIP over Wi-Fi. >>-> Stan Brooks - CWNA/CWSP Emory University Network Communications Division 404.727.0226 [EMAIL PROTECTED] AIM: WLANstan Yahoo!: WLANstan MSN: [EMAIL PROTECTED] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [EMAIL PROTECTED] On Behalf Of Brandon Pinsky [EMAIL PROTECTED] Sent: Thursday, May 29, 2008 1:03 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 1, 2 Mbps- revisit Stan, Are you using Vocera for VoIP over Wifi? Thanks, BJ On May 29, 2008, at 11:24 AM, Brooks, Stan wrote: > Matt & Lee - > > At Emory, we've disabled the 1 & 2 Mbps data rates on our healthcare > wireless network for our VoIP over Wi-Fi and electronic medical > records SSIDs in 2 of our hospitals. The hospitals are "hot" > environments - lots of APs. Doing so improved the quality of our > wireless voice traffic tremendously. It also improved our > electronic medical records connectivity as
