I can only preface it as 3rd hand info: 8540s on 8.2.160, some unidentified condition making the APs flap once a certain load of clients was reached. Beyond that, I can’t say much. Lee Badman | Network Architect
Certified Wireless Network Expert (#200) Information Technology Services 206 Machinery Hall 120 Smith Drive Syracuse, New York 13244 t 315.443.3003 f 315.443.4325 e [email protected]<mailto:[email protected]> w its.syr.edu SYRACUSE UNIVERSITY syr.edu From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Jason Watts Sent: Friday, August 25, 2017 10:11 AM To: [email protected] Subject: Re: [WIRELESS-LAN] Move In/Opening Week- Any Problems? Lee, Without identifying the school can you give any more detail about what sort of catastrophic issues they are having? What controllers/APs? We just moved to 8.2.160.0 on 5520s and I haven’t noticed anything yet that I would deem catastrophic. We are on a mix of 2802i, 3502i, 1142n APs. Jason Watts | Senior Network Administrator PRATT INSTITUTE Academic Computing On Aug 25, 2017, at 9:56 AM, Lee H Badman <[email protected]<mailto:[email protected]>> wrote: Not that I advocate it, but there are incredibly easy ways to shut down the wireless side of the printers if you chose to. That’s all I’m saying. I have heard in private that another school is having catastrophic issues with 8.2.160.0, so this may emerge as one to watch closer. Thanks for sharing- this sort of information is valuable as we all go through this rather unique exercise. -Lee From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of T. Shayne Ghere Sent: Friday, August 25, 2017 9:42 AM To: [email protected]<mailto:[email protected]> Subject: Re: [WIRELESS-LAN] Move In/Opening Week- Any Problems? Here’s our setup Running 8.2.160.0 on a pair of 8540 in HA mode 796 1810w 472 3802i Mix of 1142, 702 totaling 220 that will soon be replace with 3802i Total AP’s will be close to 2015 when new wiring is pulled Home grown registration for one SSID that’s used for devices that won’t work on secure or web-auth networks I’m running Flexconnect on the wireless along with an Rlan for the wired ports for the 1810w’s (dorms) and local switching where applicable. So far, we have identified 5 bugs with the 160.0 code which Cisco is working on. They aren’t service impacting but more of a pain than anything. (Kernel panics and watchdog resets) We have identified the Lenovo Yoga series laptops (and other models from Best Buy) having issues with enterprise networks with no solution since the last Windows 10 update. If the users go an buy a small form factor wifi adapter, everything works. Without it, they aren’t able to connect to our secure network and open networks are slow. Dell laptops seem to be the most stable followed by Macbook Pro’s. We have already surpassed most connected clients from last year on the second day of classes this year. I’m seeing a LOT of wifi enabled TV’s, IoT devices (ugh), tablets, phones, smartwatches and wireless cameras/doorbells for rooms. Our biggest concern is the amount of wireless printers that have shown up. We don’t allow wireless printers on our network, but when trying to get the wireless cards shut off for each one is becoming a problem. If anyone is handling wireless printers differently, I’d be interested in talking offline with you. Thanks ---------------------------------- T. Shayne Ghere Bradley University Network Engineer/Wireless 1501 W. Bradley Ave, Jobst 224A (309) 677-3094 (ofc) (309) 863-5738 (cell) – Emergency only [email protected]<mailto:[email protected]> ---------------------------------- UPCOMING OUT OF OFFICE Wednesday, August 30th – PM (no phone/e-mail access) From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Lee H Badman Sent: Friday, August 25, 2017 8:22 AM To: [email protected]<mailto:[email protected]> Subject: [WIRELESS-LAN] Move In/Opening Week- Any Problems? It might be beneficial to share notes in case other schools are hitting common problems. I’m wondering how everyone who is in the thick of it is faring with back-to-school? On this end, we are doing OK halfway to our expected total daily peak clients (we’re at 15K now high water mark). Our significant WLAN-related changes since end of Spring semester Running 8.2.151 on our 8540s Significant quantities of Wave 2 APs ISE as RADIUS (only, no NAC, no onboarding) No changes to: our guest WLAN (Clearpass/an Aruba controller pair) onboarding (Cloudpath Wiz) overall topology open network in dorms for gadgets non-use of AVC, it crapped out and never got solved after hundreds of hours with TAC Fears: We haven’t yet hit the scale that will reveal problems with any of the newer stuff listed above Anyone else care to share? -Lee Lee Badman | Network Architect Certified Wireless Network Expert (#200) Information Technology Services 206 Machinery Hall 120 Smith Drive Syracuse, New York 13244 t 315.443.3003 f 315.443.4325 e [email protected]<mailto:[email protected]> w its.syr.edu<http://its.syr.edu/> SYRACUSE UNIVERSITY syr.edu<http://syr.edu/> ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
