This is a great presentation. I think we would be lucky for students to get good performance while sitting still. Not even to mention roaming. :)
One bit of good news: we are seeing clients move to 5 GHz more and more. Our band interference issues will hopefully fade out more quickly than we may have initially expected. More and more devices have 5 GHz radios; once all the iPhone users move to newer devices (iPhone 5), that will take a huge chunk out of our 2 GHz users. I can't wait! (And I don't see any other obvious solution, so... it can't come soon enough.) -- Hunter Fuller Network Engineer VBRH M-9B +1 256 824 5331 Office of Information Technology The University of Alabama in Huntsville Systems and Infrastructure I am part of the UAH Safe Zone LGBTQIA support network: http://www.uah.edu/student-affairs/safe-zone On Mon, Oct 6, 2014 at 12:14 PM, Frank Sweetser <[email protected]> wrote: > (I've stumbled into that particular reddit a few times, but it's always > struck me as dominated by home users choosing between Netgear and Asus, and > enthusiasts working on tinfoil antennas. r/networking is much more useful, > once you get past the love affair with Ubiquiti.) > > I think this Aruba presentation from 2013 shows a perfect example of the > kind of impedance mismatch between SOHO and enterprise environments that > gives large scale wifi operators ulcers: > > http://community.arubanetworks.com/t5/Americas-Airheads-Conference/Breakout-Wi-Fi-Behavior-of-Popular-Mobile-Devices/gpm-p/129135 > > In short, many mobile devices optimize their roaming algorithms to pick > between a (relatively) low speed metered 3G/4G connection, and a high speed > zero cost SSID that exists solely on a single AP. The resulting "till death > do us part" roaming behavior (I'm looking at you, android!) leaves us the > mess that requires engineering resources be dumped into features like Aruba > Clientmatch to paper over. > > Frank Sweetser fs at wpi.edu | For every problem, there is a solution > that > Manager of Network Operations | is simple, elegant, and wrong. > Worcester Polytechnic Institute | - HL Mencken > > On 10/6/2014 1:00 PM, Lee H Badman wrote: >> >> Thanks. Kinda funny, I took a beating on Reddit for this. See >> >> http://www.reddit.com/r/wireless/comments/2htize/wifi_as_we_know_it_is_doomed/ >> to be amused. >> >> I think you’re either faced with these issues- trying to juggle a lot of >> complicating factors and still delivering Wi-Fi that works and won’t land >> you >> in the headlines as the next data breach- or you’re not. Those who have >> never >> had to deal with it can’t relate. >> >> Regardless, we are all heading down a weird road. The status quo just >> isn’t >> sustainable. >> >> -Lee >> >> *From:*The EDUCAUSE Wireless Issues Constituent Group Listserv >> [mailto:[email protected]] *On Behalf Of *T. Shayne Ghere >> *Sent:* Monday, October 06, 2014 12:54 PM >> *To:* [email protected] >> *Subject:* Re: [WIRELESS-LAN] HP Printers / WiFi Direct >> >> Lee, >> >> This was a GREAT article that shows what we’ve been preaching for years. >> This >> year so far has been our worst to date. >> >> S >> >> *From:*The EDUCAUSE Wireless Issues Constituent Group Listserv >> [mailto:[email protected] >> <mailto:[email protected]>] *On Behalf Of *Hall, Rand >> *Sent:* Monday, October 06, 2014 11:13 AM >> *To:* [email protected] >> <mailto:[email protected]> >> *Subject:* Re: [WIRELESS-LAN] HP Printers / WiFi Direct >> >> +1 We have been absolutely plagued by interference this year. It's always >> been >> manageable in the past...but not this year. The proliferation of devices >> is >> mind-boggling. I have an idea that the only way to clean the air in the >> residences is to turn off the power. The stuff running off batteries, for >> the >> most part, play nice. >> >> Wi-Fi is doomed: >> >> http://wirednot.wordpress.com/2014/09/29/wi-fi-as-we-know-it-is-doomed/ >> >> >> Rand >> >> Rand P. Hall >> >> Director, Network Services askIT! >> >> Merrimack College >> >> 978-837-3532 >> >> [email protected] <mailto:[email protected]> >> >> If I had an hour to save the world, I would spend 55 minutes defining the >> problem and five minutes finding solutions. – Einstein >> >> On Mon, Oct 6, 2014 at 10:58 AM, Thomas Carter <[email protected] >> <mailto:[email protected]>> wrote: >> >> We seem to be having more and more wireless interference from devices that >> are >> not wireless routers/APs. HP printers and their obnoxious setup wireless >> are >> becoming more common, and this semester we've seen a few devices using >> WiFi >> Direct (basically an ad-hoc wireless network) - the PS4 has the ability to >> connect to other Sony devices, and Roku players that used WiFi for its >> remote >> control. >> >> This forks from the "FCC just declared WLAN quarantine features illegal" >> thread, but how are you dealing with these other forms of wireless >> interference. We've essentially had to resort back to physically locating >> them >> and knocking on doors. We printed up an information sheet to slide under >> doors, and communicate with residential staff, but it seems to have >> mediocre >> success. We've also tried to communicate to students that the cause of >> slow >> wireless is most likely interference from other devices in an attempt to >> utilize peer pressure as well. Unfortunately it seems to all be very time >> consuming to track down and communcate. >> >> Thomas Carter >> Network and Operations Manager >> Austin College >> 903-813-2564 <tel:903-813-2564> >> >> ********** 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/.
