This summer we added more APs to 8540 controller. Now our 8540 controller has 2350 APs(mainly 1810W and 2802 APs) and 13K (increased from 6k in March/April) concurrent 802.1X users at peak. We also upgraded the controllers from 8.2.150.0 to 8.2.160.0 during summer. Now the controller has run into an issue twice that it suddenly lost all communications from the network. It cannot be connected from anywhere but it did not crash(was up and running). All APs disassociated from it and re-associated to the secondary 8540. I suspect this issue is somehow load related although Cisco's advertised support is 64k clients. We would like to know if anyone else has more concurrent 802.1X users than us on 8540 and do not have this issue? And what code do you use?
Thanks. Dennis Xu | Analyst III, Network Infrastructure Computing and Communications Services (CCS) | University of Guelph ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
