Is that like rouge backhoes? (http://www.gossamer-threads.com/lists/nanog/users/119781)
-- ian From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Mike King Sent: 31 January 2012 14:26 To: [email protected] Subject: Re: [WIRELESS-LAN] Cisco APs losing CAPWAP session Back in the bad old 4.0 code days (4 + years ago), I hit a bug when more than 25 people associated to an access point, it would spontaneously reboot. See if you can see a correlation in WCS, look for number of associations, number of rouge clients, number of rouge AP's. Mike On Tue, Jan 31, 2012 at 8:46 AM, Mike Goebel <[email protected]<mailto:[email protected]>> wrote: How big are your subnets the APs reside on, and how is your latency from the controllers to the APs? I know the APs are latency sensitive. Mike On 1/31/2012 8:44 AM, Scott Smith wrote: We installed around 700 over the summer in our residence halls as well. I've seen the same issue. However we've never had WCS until the same project. I'm starting to wonder as well. Yup....it's a Droid !!! On Jan 31, 2012 7:39 AM, "Dan Brisson" <[email protected]<mailto:[email protected]> <mailto:[email protected]<mailto:[email protected]>>> wrote: I'm curious if any Cisco users out there are experiencing or have experienced what we're seeing on our campus. This past summer we installed 3502i's in all of our residence halls - approximately 500 total. Ever since the students have moved in, we will get messages from WCS stating that "AP XYZ" is down and disassociated from the controller. When I check out the AP, the uptime is fine, but the "CAPWAP join time" is for like 30 seconds, or however long it took me to check. We've tracked this and it is totally random as to what AP will drop, which makes troubleshooting this very tough. The log on the AP isn't helpful. I'm working with TAC who suggests that keepalives are getting missed. I'm not sure why that would be the case since we have another 500 or so APs on the admin side that very rarely drop. Adding to that, when the students left for break, the AP drops stopped. They came back, and sure enough, the drops start up again. I will say that the AP always joins back immediately, but for the time that it does drop A) I'm sure connectivity is affected in that area and B) we get an email. Anyone experiencing this? Thanks, -dan -- Dan Brisson Network Engineer University of Vermont (Ph) 802.656.8111<tel:802.656.8111> <tel:802.656.8111<tel:802.656.8111>> [email protected]<mailto:[email protected]> <mailto:[email protected]<mailto:[email protected]>> ********** 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/>. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Mike Goebel Network Programmer Office of Information Technology Western Michigan University Phone: 269-387-0453<tel:269-387-0453> Email: [email protected]<mailto:[email protected]> ********** 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/.
