We have a much much smaller wireless network than you all at 200 Cisco fat AP's controlled with Aruba's Airwave product, but I have been noticing in the last several months the same type of behavior with our AP's. I have traditionally rebooted the AP's twice a year to clear out the memory and or during a firmware upgrade. In the past year I did not reboot the AP's and have begun to receive complaints of poor connectivity and throughput. A reboot of the AP fixes the problem.
I have not contacted Cisco about this problem yet. Mike Mike Hanson, CISSP Network Security Manager The College of St. Scholastica Duluth, MN 55811 On Fri, Oct 19, 2012 at 8:49 AM, Caston Thomas <ctho...@iworkstech.com>wrote: > Www.7signal.com > > Caston Thomas > InterWorks > Sent from my iPhone > 586.530.4981 mobile > 248.608.0000 office > > On Oct 19, 2012, at 9:32 AM, "Christina Klam" <ck...@ias.edu> wrote: > > > Good Morning, > > > > We have noticed that after ~4 months the quality of our Cisco wireless > > network sours. We will get reports of poor wireless quality from users > > sitting directly under an access point. Often the WCS will report users > > on the access points with good dBm, but in reality the users can barely > > search the web. (I cannot remember if the average client SNR was looked > > at). The "solution" is to reboot the access point. So, we now are now > > talking about scheduling a reboot of all access points and controllers > > (4400s) every 3 months. While this may work to keep the problem at bay, > > it does not address two related questions. > > > > 1. Why is this happening? When I mentioned this behavior to a Cisco > > TAC, they said they had never heard of this before. As this has been > > our norm through multiple code and access point upgrades, I cannot > > believe this. > > > > 2. What are other schools using to monitor the quality of the wifi? I > > do not mean the rf interference quailty but instead a way to monitor of > > how well the access points are passing traffic, signal strength, average > > client SNR, etc? > > > > Thank you, > > > > -- Christina > > Christina Klam > > Network Administrator > > Institute for Advanced Study > > Email: ck...@ias.edu > > > > Einstein Drive Telephone: 609-734-8154 > > Princeton, NJ 08540 Fax: 609-951-4418 > > > > ********** > > 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/.
