Per the victim: “I have seen this happening to 3500, 2600, 3600 & 3700 APs. “
The workarounds that TAC suggested to him were completely unrealistic for a prod environment, IMO. I’m not going near .120 myself. -Lee Lee Badman | Network Architect Information Technology Services 206 Machinery Hall 120 Smith Drive Syracuse, New York 13244 t 315.443.3003 f 315.443.4325 e lhbad...@syr.edu<mailto:lhbad...@syr.edu> w its.syr.edu SYRACUSE UNIVERSITY syr.edu From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Paul Sedy Sent: Monday, August 31, 2015 11:45 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Cisco WLC 8.0.120.0 (MR2) on 8510- good, bad? Lee, do you know if that issue is connected to a specific type of AP? Paul Sedy The Master’s College Director of IT Operations 21726 Placerita Canyon Rd, Santa Clarita, CA 91321 661.362.2340 | rps...@masters.edu<mailto:rps...@masters.edu> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Lee H Badman Sent: Monday, August 31, 2015 8:34 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] Cisco WLC 8.0.120.0 (MR2) on 8510- good, bad? I am hearing an ugly not-public issue with .120. From a colleague: 1. Running 8.1.111.0 2. I’ve noticed that when the APs reboot, sometimes APs won’t join the controller. 3. The command “sh cdp n detail” shows all normal and the APs are getting the correct IP address; 4. However, the output of “sh interface <PORT>” only shows one-way-traffic: From the switch to the AP and nothing coming back from the AP; 5. AP refuses to join the controller; 6. If I console into the AP I will see a lot of newly-generated crash logs pointing to the corruption of the radio drivers. I do NOT understand how the corruption of radio drivers preventing the AP from joining the controller. 7. The AP did NOT boot into ROMmon; 8. If I delete the IOS and force the AP to boot the recovery image, the AP will join properly. TAC told him this is a known bug that WAS NOT fixed on .120, but would be on the next MR release around November. You may want to hold out for that one. -Lee Lee Badman | Network Architect Information Technology Services 206 Machinery Hall 120 Smith Drive Syracuse, New York 13244 t 315.443.3003 f 315.443.4325 e lhbad...@syr.edu<mailto:lhbad...@syr.edu> w its.syr.edu SYRACUSE UNIVERSITY syr.edu From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Cosgrove, John Sent: Monday, August 31, 2015 11:22 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] Cisco WLC 8.0.120.0 (MR2) on 8510- good, bad? I am about to cut over to 8.0.120.0 on WiSM2 modules. Abt 1500 AP’s so if anyone has any concerns or issues. Not date planned and just doing pre-testing at this point but want to do this in the next 2 months. Thx John Cosgrove Wireless Network Staff Specialist Penn State Hershey Medical Center and Health System Penn State College of Medicine 140 Sipe Ave Hershey, PA 17033 Phone: 717-531-6131 EMail: jcosgr...@hmc.psu.edu<mailto:jcosgr...@hmc.psu.edu> Web: http://pennstatehershey.org<http://pennstatehershey.org/> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Paul Sedy Sent: Monday, August 31, 2015 11:13 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] Cisco WLC 8.0.120.0 (MR2) on 8510- good, bad? Is the bug only showing up on 8.0.120? We are running 8.0.110.0. Paul Sedy The Master’s College Director of IT Operations 21726 Placerita Canyon Rd, Santa Clarita, CA 91321 661.362.2340 | rps...@masters.edu<mailto:rps...@masters.edu> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Dan Brisson Sent: Monday, August 31, 2015 5:46 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] Cisco WLC 8.0.120.0 (MR2) on 8510- good, bad? Any update on the bug fix for the flapping 5ghz radios in 8.0.120? I'm seeing a fair amount of them on my 3702i's. Thanks! -dan Dan Brisson Network Engineer University of Vermont On 7/28/15 4:45 AM, Scharloo, Gertjan wrote: Hi Lee, The 5 GHz radio message is a DFS problem and part of bug (CSCut98006)-and (CSCuq86269) CSCut98006 DFS detections due to high energy profile signature – AP2600/3600 specific fix Fixed in Image 8.0.110.22 for 3600/2600 platforms For 1700/2700/3700 will be coming soon, as there were some minor issues found during fix porting for this HW that are being resolved. This week Cisco should be able to confirm ETA for this second part of the fix (this is my TAC case SR 634977857 Flapping AP radio causing Alarms in Prime) Gertjan Scharloo ICT Consultant _____ Universiteit van Amsterdam | Hogeschool van Amsterdam ICT Services Leeuwenburg | kamer A9.36 Weesperzijde 190 | 1097 DZ Amsterdam +31 (0)20 525 4885 Mobiel : +31(0) 61013-5880 www.uva.nl<http://www.uva.nl/> uva.nl/profile/g.scharloo Beschikbaar : Ma | - | Wo | Do | Vr | Van: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] Namens Jess Walczak Verzonden: dinsdag 28 juli 2015 01:25 Aan: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Onderwerp: Re: [WIRELESS-LAN] Cisco WLC 8.0.120.0 (MR2) on 8510- good, bad? Lee, I am also seeing what Scott is seeing with the nearly instantaneous radio resets on the 5Ghz side. It doesn't seem to affect any client experience, either, but it does generate a LOT of noise from a monitoring point of view. We have had a TAC open about this since February, but honestly haven't really done any hardcore troubleshooting of the issue once we ascertained that it was not affecting service in any real way. In Prime, I have it emailing a distribution group, and I get tons and tons of emails from the same exact time, one reading that the AP went down, and the other one reading that it came up, like so: __________________________________ PI has detected a change in one or more alarms of category AP and severity Critical in Virtual Domain ROOT-DOMAIN. The new severity of the following items is Clear: 1. Message: '802.11a/n' interface of AP 'OWS458-01-1142' associated to controller 'UST-WLC8510 (140.209.13.70)' is up. Failure Source: AP OWS458-01-1142, Interface 802.11a/n __________________________________ PI has detected one or more alarms of category AP and severity Critical in Virtual Domain ROOT-DOMAIN for the following items: 1. Message: '802.11a/n' interface of AP 'OWS458-01-1142' associated to controller 'UST-WLC8510 (140.209.13.70)' is down. Reason: Unknown Failure Source: AP OWS458-01-1142, Interface 802.11a/n __________________________________ In fact, here, the "all clear" message arrived before the one telling about the down event, and both are timestamped for 4:21PM. :-) Our environment is an 8510 HA pair running 8.0.120.0 for the larger campus with 900 or so APs, and an 5508 HA pair running 8.0.120.0 for the smaller campus with under 200 APs, and Prime 2.2. The AP models we have are 1242's, 1142's, 2702's (both i's and e's), and 702W's. Also, we are just now going live with ISE 1.4 as well. Jess Walczak Sr. Network Analyst University of St. Thomas Saint Paul, MN On Mon, Jul 27, 2015 at 5:18 PM, Scott McDermott <sco...@kcls.org<mailto:sco...@kcls.org>> wrote: My environment is not on that scale, but I’m still seeing a lot of 5GHz radios cycling between up and down states followed by a reset, then it will come back up. Might happen again later, might not. Seems to be happening on all models. -- Scott McDermott Network & System Administrator King County Library System From: The EDUCAUSE Wireless Issues Constituent Group Listserv on behalf of Lee H Badman Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv Date: Monday, July 27, 2015 at 06:03 To: "WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>" Subject: [WIRELESS-LAN] Cisco WLC 8.0.120.0 (MR2) on 8510- good, bad? Hello to the group- for those of you who have moved to the Cisco-recommended 8.0.120.0 code, have you found any issues? Particularly big 8510 environments with thousands of APs per controller doing 802.1x/WPA2. Thanks- Lee Lee Badman | Network Architect Information Technology Services 206 Machinery Hall 120 Smith Drive Syracuse, New York 13244 t 315.443.3003<tel:315.443.3003> f 315.443.4325<tel:315.443.4325> e lhbad...@syr.edu<mailto:lhbad...@syr.edu>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/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/. ********** 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/. ********** 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/.
