On Tue, Aug 04, 2009 at 09:13:29AM -0500, Hector J Rios wrote: > > Has anybody upgraded to 5.2.193? Can you provide any feedback?
We have upgraded 31 WLCs from 4.2.130.0 to 5.2.193.0, with no operational issues seen and no problems reported for clients so far. We have approx 3,500 APs, and the client count is at its lowest level due to summer session with around 3,000 peak simultaneous clients. We are installing a number of 1142s, so we needed the new code to support them. We *did* encounter a weird AP join issue on some of the WLCs in one of our mobility groups when there were mixed versions of WLC code while upgrading WLCs in the same mobility group (some controllers on 4.2 and others on 5.2). The issue was a delayed join to the primary WLC for APs during the process of upgrading the controller and then waiting for APs to re-join the upgraded (primary) controller (we configure the primary/secondary/tertiary WLCs on the APs). We escalated the issue and Cisco has developed a fix that will presumably ship in newer code. Meanwhile, we noticed that if we upgraded the first controller in the mobililty group (the one with the lowest MAC address as seen in "show mobility summary") to the new controller code first then that seemed to avoid the issue of having large numbers of delayed AP joins. Given that, we resumed our upgrades and have almost completed the entire set of WLCs. -Charles Charles E. Spurgeon / UTnet UT Austin ITS / Networking [email protected] / 512.475.9265 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
