We see about the same as everyone else. One thing to make sure you do is to prune the trunks to the WiSMs to eliminate any unnecessary broadcast traffic. I have seen that cause undue stress on the WiSMs before.
-----Original Message----- From: Todd M. Hall [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 13, 2008 4:59 PM To: [email protected] Subject: Re: [WIRELESS-LAN] Cisco Wisms CPU We have four WiSM's with about 750 APs and 1500-2000 concurrent users running 4.2.62.0 code. We have always averaged two percent or less with occasional spikes to 15%. On Wed, 13 Feb 2008, James J J Hooper wrote: > Date: Wed, 13 Feb 2008 21:10:38 +0000 > From: James J J Hooper <[EMAIL PROTECTED]> > Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv > <[email protected]> > To: [email protected] > Subject: [WIRELESS-LAN] Cisco Wisms CPU > > Hi All, > A quick question for those out there with WISMs... What level of CPU usage > are you experiencing (with how many users)? > > A bit of background... > We have two wism blades (4 wisms) and since we purchased them in about > april'07 they were running at about 35%, rising to 50% at peak times, with > frequent spikes up to about 90%. The spikes were worrying, but the average > seemed ok, and as they did this from day one I was under the impression this > was the norm. > > Recently, we upgraded to the 4.2.x.y stream from 4.1. As has been covered in > other recent posts, 4.2 has some outstanding issues (more than others anyway) > and things became unstable... so we decided to go back to 4.1.85.0 (TAC > hasn't provided us with any solutions for 4.2 issues). We had a backup of our > previous 4.1 config, but I chose not to use it and start again from scratch > (a few things had changed, so either way involved work) > > Since the reversion to 4.1.85.0, our cpu usage now averages 2% and peaks at > 6% at peak times (220 waps, ~350 users). > [4.1.85.0, 12.2(18)SXF7] > > Thanks, > James > > -- > James J J Hooper > Network Specialist > Information Services > University of Bristol > http://www.wireless.bristol.ac.uk > -- > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. -- Todd M. Hall Sr. Network Analyst Information Technology Infrastructure Mississippi State University [EMAIL PROTECTED] 662-325-9311 (phone) ********** 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/.
