Disabling 802.11b speeds
This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Disabling 802.11b speeds
We have axed 1, 2, and 5.5. But... in one case had to locally re-enable for retail bar scanners, in another for ticket scanners, and just this week dealing with Vernier Labquest2 scientific probes that will only work if lowest rates are on. Lee H. Badman Network Architect/Wireless TME Information Technology and Services (ITS) Syracuse University 315 443-3003 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 8:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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 802.11b speeds
We too were thinking of disabling the B rates. But I read (post below) that some people run into Apple devices dropping connection when they did this so I am still looking at this. Post: If you're using Cisco one thing to check is that the MCS0 data rate is enabled. I had a lot of problems with Macs and iThings dropping after I disabled the 802.11b rates and MCS0. Per TAC's suggestion I re-enabled the MCS0 rate and have not been experiencing the problems since. Apparently it has to do with the OS dropping the data rate to MCS0 to save power, but not checking if that rate is supported before doing it. Randy Ethridge Network Engineer V Information Services Eastern Illinois University rlethri...@eiu.edu Office Ph. 217-581-7640 Proud to say I am EIU EIU THINKS GREEN: Before printing this e-mail think if it is necessary - Original Message - From: Todd M. Hall t...@msstate.edu To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Sent: Thursday, September 27, 2012 7:54:59 AM Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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/.
SV: [WIRELESS-LAN] Disabling 802.11b speeds
Hi Todd, Disabling 802.11b is not an option but a must nowadays. You get much better overall performance with all data traffic over OFDM. There's a lot of time (Airtime)that gets lot if you allow old legacy protocols. We have had 802.11b off for over a year and nobody complains. Cheers Anders Nilsson -Ursprungligt meddelande- Från: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] För Todd M. Hall Skickat: den 27 september 2012 14:55 Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Ämne: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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 802.11b speeds
We've eliminated all the b rates on our wireless with no significant issues. We had lots of connections to our wireless at 802.11b rates, but it was users out of range from the APs, or clients with outdated drivers - both problems which were easily corrected. Our wireless is entirely 1X, so consumer devices like TVs and game consoles, some of which I've heard require at least the 11Mb rate, were not a concern here because they couldn't authenticate anyway. Chuck Enfield Sr. Communications Engineer Telecommunications Networking Services The Pennsylvania State University 110H, USB2, UP, PA 16802 ph: 814.863.8715 fx: 814.865-3988 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 8:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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 802.11b speeds
We've disabled 1,2 and 5.5 rates but left everything else on (inc. 6 and 9 Mbps on g and 7 Mbps (MCS 0) on n). Working fine for us so far. 44 Buildings (inc. Halls of Residence and campus in Cyprus), 1000 Cisco APs, 3500 peak users/devices, 8000 unique users/devices per day, 1 TB traffic per day. Jennifer Wilson Networks officer University of Central Lancashire 01772 89 2116 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Randy Ethridge Sent: 27 September 2012 14:14 To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We too were thinking of disabling the B rates. But I read (post below) that some people run into Apple devices dropping connection when they did this so I am still looking at this. Post: If you're using Cisco one thing to check is that the MCS0 data rate is enabled. I had a lot of problems with Macs and iThings dropping after I disabled the 802.11b rates and MCS0. Per TAC's suggestion I re-enabled the MCS0 rate and have not been experiencing the problems since. Apparently it has to do with the OS dropping the data rate to MCS0 to save power, but not checking if that rate is supported before doing it. Randy Ethridge Network Engineer V Information Services Eastern Illinois University rlethri...@eiu.edu Office Ph. 217-581-7640 Proud to say I am EIU EIU THINKS GREEN: Before printing this e-mail think if it is necessary - Original Message - From: Todd M. Hall t...@msstate.edu To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Sent: Thursday, September 27, 2012 7:54:59 AM Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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 802.11b speeds
That post belonged to me. You can still disable the 802.11b data rates (1, 2, 5.5, 11), which I have done at our campuses. You just need to leave the 802.11n MCS0 rate (6.5/7) in order to keep the iThingies happy. Josh Robertson Network Systems Senior Engineer Old Dominion University Office of Computing Communications Services (757)683-5046 j2rob...@odu.edu http://occs.odu.edu/ -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Randy Ethridge Sent: Thursday, September 27, 2012 9:14 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We too were thinking of disabling the B rates. But I read (post below) that some people run into Apple devices dropping connection when they did this so I am still looking at this. Post: If you're using Cisco one thing to check is that the MCS0 data rate is enabled. I had a lot of problems with Macs and iThings dropping after I disabled the 802.11b rates and MCS0. Per TAC's suggestion I re-enabled the MCS0 rate and have not been experiencing the problems since. Apparently it has to do with the OS dropping the data rate to MCS0 to save power, but not checking if that rate is supported before doing it. Randy Ethridge Network Engineer V Information Services Eastern Illinois University rlethri...@eiu.edu Office Ph. 217-581-7640 Proud to say I am EIU EIU THINKS GREEN: Before printing this e-mail think if it is necessary - Original Message - From: Todd M. Hall t...@msstate.edu To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Sent: Thursday, September 27, 2012 7:54:59 AM Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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/. -- BEGIN-ANTISPAM-VOTING-LINKS -- Teach CanIt if this mail (ID 705211983) is spam: Spam: https://www.spamtrap.odu.edu/b.php?i=705211983m=fae4e6b97e8dt=20120927c=s Not spam: https://www.spamtrap.odu.edu/b.php?i=705211983m=fae4e6b97e8dt=20120927c=n Forget vote: https://www.spamtrap.odu.edu/b.php?i=705211983m=fae4e6b97e8dt=20120927c=f -- END-ANTISPAM-VOTING-LINKS
RE: Disabling 802.11b speeds
We only disable 1 and 2 as we like to get all of the consumer wireless stuff the students bring on campus connected to wireless. We use DHCP fingerprinting to auth most of the stuff that can't do 802.1X or captive portal. -Brian -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Robertson, Joshua A. Sent: Thursday, September 27, 2012 9:26 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: Disabling 802.11b speeds That post belonged to me. You can still disable the 802.11b data rates (1, 2, 5.5, 11), which I have done at our campuses. You just need to leave the 802.11n MCS0 rate (6.5/7) in order to keep the iThingies happy. Josh Robertson Network Systems Senior Engineer Old Dominion University Office of Computing Communications Services (757)683-5046 j2rob...@odu.edu http://occs.odu.edu/ -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Randy Ethridge Sent: Thursday, September 27, 2012 9:14 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We too were thinking of disabling the B rates. But I read (post below) that some people run into Apple devices dropping connection when they did this so I am still looking at this. Post: If you're using Cisco one thing to check is that the MCS0 data rate is enabled. I had a lot of problems with Macs and iThings dropping after I disabled the 802.11b rates and MCS0. Per TAC's suggestion I re-enabled the MCS0 rate and have not been experiencing the problems since. Apparently it has to do with the OS dropping the data rate to MCS0 to save power, but not checking if that rate is supported before doing it. Randy Ethridge Network Engineer V Information Services Eastern Illinois University rlethri...@eiu.edu Office Ph. 217-581-7640 Proud to say I am EIU EIU THINKS GREEN: Before printing this e-mail think if it is necessary - Original Message - From: Todd M. Hall t...@msstate.edu To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Sent: Thursday, September 27, 2012 7:54:59 AM Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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/. -- BEGIN-ANTISPAM-VOTING-LINKS -- Teach CanIt if this mail (ID 705211983) is spam: Spam: https://www.spamtrap.odu.edu/b.php?i=705211983m=fae4e6b97e8dt=20120927c=s Not spam: https://www.spamtrap.odu.edu/b.php?i=705211983m=fae4e6b97e8dt=20120927c=n Forget vote: https://www.spamtrap.odu.edu/b.php?i=705211983m=fae4e6b97e8dt=20120927c=f -- END-ANTISPAM-VOTING-LINKS
RE: [WIRELESS-LAN] Disabling 802.11b speeds
We disabled all the b speeds several years ago. Had no complaints then and continue to not have any. -jcw - John Watters UA: OIT 205-348-3992 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 7:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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 802.11b speeds
We will probably end most of the B rates at the end of this school year. They have not been a problem since switching to Ruckus wireless. We get a LOT of BYODs on campus, we support TVs, Game Consoles, wireless printers, etc. Most of our slower B traffic has been Android devices. Harry Rauch Sr. Network Analyst Eckerd College 4200 - 54th Ave S St. Petersburg, FL 33711 On 9/27/12 9:30 AM, Watters, John wrote: We disabled all the b speeds several years ago. Had no complaints then and continue to not have any. -jcw - John WattersUA: OIT 205-348-3992 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 7:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
RE: [WIRELESS-LAN] Disabling 802.11b speeds
In my experience, disabling b rates only help in areas with high AP density, in particular, Apple devices that like to be very close to the APs. In areas with low AP density, it could create issues for devices such as Macbooks. Marcelo Lew Wireless Enterprise Administrator University Technology Services University of Denver Desk: (303) 871-6523 Cell: (303) 669-4217 Fax: (303) 871-5900 Email: m...@du.edu -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Harry Rauch Sent: Thursday, September 27, 2012 8:30 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We will probably end most of the B rates at the end of this school year. They have not been a problem since switching to Ruckus wireless. We get a LOT of BYODs on campus, we support TVs, Game Consoles, wireless printers, etc. Most of our slower B traffic has been Android devices. Harry Rauch Sr. Network Analyst Eckerd College 4200 - 54th Ave S St. Petersburg, FL 33711 On 9/27/12 9:30 AM, Watters, John wrote: We disabled all the b speeds several years ago. Had no complaints then and continue to not have any. -jcw - John WattersUA: OIT 205-348-3992 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 7:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. ** 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 802.11b speeds
Forgot to mention, if you run Aruba (and I'm sure many others support a similar feature), you can check a flag called Broadcast/Multicast Optimization and even when leaving b rates on, broadcast and multicast won't be sent at the lowest basic rate, but the minimum supported rate by the stations connected to a particular AP (so the AP keeps track of the stations connected to him and what is the lowest rate they can do). Marcelo Lew Wireless Enterprise Administrator University Technology Services University of Denver Desk: (303) 871-6523 Cell: (303) 669-4217 Fax: (303) 871-5900 Email: m...@du.edu -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Marcelo Lew Sent: Thursday, September 27, 2012 9:05 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds In my experience, disabling b rates only help in areas with high AP density, in particular, Apple devices that like to be very close to the APs. In areas with low AP density, it could create issues for devices such as Macbooks. Marcelo Lew Wireless Enterprise Administrator University Technology Services University of Denver Desk: (303) 871-6523 Cell: (303) 669-4217 Fax: (303) 871-5900 Email: m...@du.edu -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Harry Rauch Sent: Thursday, September 27, 2012 8:30 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We will probably end most of the B rates at the end of this school year. They have not been a problem since switching to Ruckus wireless. We get a LOT of BYODs on campus, we support TVs, Game Consoles, wireless printers, etc. Most of our slower B traffic has been Android devices. Harry Rauch Sr. Network Analyst Eckerd College 4200 - 54th Ave S St. Petersburg, FL 33711 On 9/27/12 9:30 AM, Watters, John wrote: We disabled all the b speeds several years ago. Had no complaints then and continue to not have any. -jcw - John WattersUA: OIT 205-348-3992 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 7:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. ** 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/.
RE: [WIRELESS-LAN] Disabling 802.11b speeds
We turned off all B rates this summer along with 802.11b protection (we are an Aruba campus). We did it during the summer and saw immediate improvements in speed. To be effective, you need all B rates off, the goal isn't to kill the lower speeds, the goal is to kill B altogether. It's an older and less efficient protocol. Part of the reason for the increase of speed even during the quiet time of summer is that the AP's will use the lower speeds 1Mps/2Mps for management / broadcasting / Beacons / etc. By dropping B, the slowest speed is now 6 Mbps for all the base level management traffic, etc. No complaints so far, we have both open and wpa2 and all sorts of devices. Stats from last semester showed almost no B usage, so we felt pretty safe in shutting it down. I have heard that the Wii's want B/1Mbps to find the AP and then can ramp up, but haven't confirmed / seen this yet. Carl Oakes California State University Sacramento -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Marcelo Lew Sent: Thursday, September 27, 2012 8:05 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds In my experience, disabling b rates only help in areas with high AP density, in particular, Apple devices that like to be very close to the APs. In areas with low AP density, it could create issues for devices such as Macbooks. Marcelo Lew Wireless Enterprise Administrator University Technology Services University of Denver Desk: (303) 871-6523 Cell: (303) 669-4217 Fax: (303) 871-5900 Email: m...@du.edu -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Harry Rauch Sent: Thursday, September 27, 2012 8:30 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We will probably end most of the B rates at the end of this school year. They have not been a problem since switching to Ruckus wireless. We get a LOT of BYODs on campus, we support TVs, Game Consoles, wireless printers, etc. Most of our slower B traffic has been Android devices. Harry Rauch Sr. Network Analyst Eckerd College 4200 - 54th Ave S St. Petersburg, FL 33711 On 9/27/12 9:30 AM, Watters, John wrote: We disabled all the b speeds several years ago. Had no complaints then and continue to not have any. -jcw - John WattersUA: OIT 205-348-3992 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 7:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. ** 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/.
Re: [WIRELESS-LAN] Disabling 802.11b speeds
We dropped 802.11b this time last year. I haven't received one complaint, and the performance increase was dramatic. Your mileage may vary, but I found that APs would go into b/g protection mode if they thought an 11b client might be around. What resulted was a situation where about half of our APs were in protection mode at any given time, even though not a single 802.11b client was connected. - Craig SFU SIMON FRASER UNIVERSITY Network Services Craig Simons Network and Systems Administrator Phone: 778-782-8036 Cell: 604-649-7977 Email: craigsim...@sfu.ca Twitter: simonscraig - Original Message - From: Todd M. Hall t...@msstate.edu To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Sent: Thursday, 27 September, 2012 05:54:59 Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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] [WIRELESS-LAN] Disabling 802.11b speeds
What about Nintendo Wii? We disabled 1 2 Mbps a couple of years ago and found that Wiis could no longer connect. Found that they required 1Mbps. Maybe this is no longer the case and I can back to turning it off. Dan Mahar Network Manager Information Technology Services Peschel Computing Centeroff (518) 388-8050 807 Union St. Fax (518) 388-6458 Schenectady, NY 12308 mah...@union.edu On Sep 27, 2012, at 9:15 AM, Anders Nilsson anders.nils...@adm.umu.se wrote: Hi Todd, Disabling 802.11b is not an option but a must nowadays. You get much better overall performance with all data traffic over OFDM. There's a lot of time (Airtime)that gets lot if you allow old legacy protocols. We have had 802.11b off for over a year and nobody complains. Cheers Anders Nilsson -Ursprungligt meddelande- Från: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] För Todd M. Hall Skickat: den 27 september 2012 14:55 Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Ämne: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** 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/.
RE: [WIRELESS-LAN] Disabling 802.11b speeds
I have also killed b data rates as well. The issue with the Wii is true here is article describing the issue. We have had a few complaints in the residence halls regarding the Wii. For those folks we just educate them to get a wired lan adapter for their Wii system. The only place we had to keep b data rates was for ticketmaster scanners at our stadiums using rf profiles in 7.2 code helped us localize these data rates to only those aps. http://nostringsattachedshow.com/2012/01/18/nintendo-vs-cisco/ Thanks Trent -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Oakes, Carl W Sent: Thursday, September 27, 2012 11:50 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We turned off all B rates this summer along with 802.11b protection (we are an Aruba campus). We did it during the summer and saw immediate improvements in speed. To be effective, you need all B rates off, the goal isn't to kill the lower speeds, the goal is to kill B altogether. It's an older and less efficient protocol. Part of the reason for the increase of speed even during the quiet time of summer is that the AP's will use the lower speeds 1Mps/2Mps for management / broadcasting / Beacons / etc. By dropping B, the slowest speed is now 6 Mbps for all the base level management traffic, etc. No complaints so far, we have both open and wpa2 and all sorts of devices. Stats from last semester showed almost no B usage, so we felt pretty safe in shutting it down. I have heard that the Wii's want B/1Mbps to find the AP and then can ramp up, but haven't confirmed / seen this yet. Carl Oakes California State University Sacramento -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Marcelo Lew Sent: Thursday, September 27, 2012 8:05 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds In my experience, disabling b rates only help in areas with high AP density, in particular, Apple devices that like to be very close to the APs. In areas with low AP density, it could create issues for devices such as Macbooks. Marcelo Lew Wireless Enterprise Administrator University Technology Services University of Denver Desk: (303) 871-6523 Cell: (303) 669-4217 Fax: (303) 871-5900 Email: m...@du.edu -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Harry Rauch Sent: Thursday, September 27, 2012 8:30 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We will probably end most of the B rates at the end of this school year. They have not been a problem since switching to Ruckus wireless. We get a LOT of BYODs on campus, we support TVs, Game Consoles, wireless printers, etc. Most of our slower B traffic has been Android devices. Harry Rauch Sr. Network Analyst Eckerd College 4200 - 54th Ave S St. Petersburg, FL 33711 On 9/27/12 9:30 AM, Watters, John wrote: We disabled all the b speeds several years ago. Had no complaints then and continue to not have any. -jcw - John WattersUA: OIT 205-348-3992 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 7:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. ** 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/.
RE: [WIRELESS-LAN] Disabling 802.11b speeds
FYI- Ticketmaster has a new Janam dual-band scanner that does nicely on 5 GHz in my testing. From: The EDUCAUSE Wireless Issues Constituent Group Listserv [WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] on behalf of Hurt,Trenton W. [trent.h...@louisville.edu] Sent: Thursday, September 27, 2012 1:38 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds I have also killed b data rates as well. The issue with the Wii is true here is article describing the issue. We have had a few complaints in the residence halls regarding the Wii. For those folks we just educate them to get a wired lan adapter for their Wii system. The only place we had to keep b data rates was for ticketmaster scanners at our stadiums using rf profiles in 7.2 code helped us localize these data rates to only those aps. http://nostringsattachedshow.com/2012/01/18/nintendo-vs-cisco/ Thanks Trent -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Oakes, Carl W Sent: Thursday, September 27, 2012 11:50 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We turned off all B rates this summer along with 802.11b protection (we are an Aruba campus). We did it during the summer and saw immediate improvements in speed. To be effective, you need all B rates off, the goal isn't to kill the lower speeds, the goal is to kill B altogether. It's an older and less efficient protocol. Part of the reason for the increase of speed even during the quiet time of summer is that the AP's will use the lower speeds 1Mps/2Mps for management / broadcasting / Beacons / etc. By dropping B, the slowest speed is now 6 Mbps for all the base level management traffic, etc. No complaints so far, we have both open and wpa2 and all sorts of devices. Stats from last semester showed almost no B usage, so we felt pretty safe in shutting it down. I have heard that the Wii's want B/1Mbps to find the AP and then can ramp up, but haven't confirmed / seen this yet. Carl Oakes California State University Sacramento -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Marcelo Lew Sent: Thursday, September 27, 2012 8:05 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds In my experience, disabling b rates only help in areas with high AP density, in particular, Apple devices that like to be very close to the APs. In areas with low AP density, it could create issues for devices such as Macbooks. Marcelo Lew Wireless Enterprise Administrator University Technology Services University of Denver Desk: (303) 871-6523 Cell: (303) 669-4217 Fax: (303) 871-5900 Email: m...@du.edu -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Harry Rauch Sent: Thursday, September 27, 2012 8:30 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Disabling 802.11b speeds We will probably end most of the B rates at the end of this school year. They have not been a problem since switching to Ruckus wireless. We get a LOT of BYODs on campus, we support TVs, Game Consoles, wireless printers, etc. Most of our slower B traffic has been Android devices. Harry Rauch Sr. Network Analyst Eckerd College 4200 - 54th Ave S St. Petersburg, FL 33711 On 9/27/12 9:30 AM, Watters, John wrote: We disabled all the b speeds several years ago. Had no complaints then and continue to not have any. -jcw - John WattersUA: OIT 205-348-3992 -Original Message- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Todd M. Hall Sent: Thursday, September 27, 2012 7:55 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: [WIRELESS-LAN] Disabling 802.11b speeds This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. ** 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
sizing NAT and leases for the explosion
This is official, we have almost reached the capacity of our public IP addresses (20,000 just on Wireless) We love IPv6, but for the moment it's not going to solve our issue! So, NAT it is, and we have zero experience besides our visitor network that handles 1000+ users. Our plan is to terminate NAT on our Fortinet firewalls, and assign 32 VLANs (in our Aruba VLAN pools) with a private /21 in each subnet. So ~64,000 IP addresses. We block mDNS etc... no worries there. We can now move away from the 30 minutes lease time and go to... I was thinking 12 or 14 hours. We plan to do NAT-PAT 1 public to 8 private IP ratio or 1 to 16. People with similar size networks: Anything to worry about? DHCP capacity, NAT capacity, Logs, ... Thank you in advance for your input, Philippe Hanset Univ. of TN, Knoxville www.eduroamus.org ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Disabling 802.11b speeds
When I disabled the lower rates it broke the wii. That was last year so maybe the wii has improved. I re-enabled 1,2 and the wii started working. On Thu, Sep 27, 2012 at 8:54 AM, Todd M. Hall t...@msstate.edu wrote: This has been discussed in the past, but it has been a long time. We're at the point that we have to turn off the lower connection rates on our campus. I'm curious what other schools have done and the positive/negative results from the changes. We have disabled 1, 2, 5.5, and 11 Mbps in some of our buildings with great success, but some might argue to just eliminate 1 2 Mbps rates. Also, I'd be interested to hear from schools that have not disabled these rates and why not. -- Todd M. Hall Sr. Network Analyst Information Technology Services Mississippi State University t...@msstate.edu ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/**groups/http://www.educause.edu/groups/ . -- John Kaftan IT Infrastructure Manager Utica College ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
