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]>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]>> 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> >> [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/>< >> 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/ <http://www.educause.edu/groups/>. >> >> > -- > Mike Goebel > Network Programmer > Office of Information Technology > Western Michigan University > Phone: 269-387-0453 > Email: [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/.
