All,
First wanted to thank everyone for their responses. After spending a
week or so with my head down I believe I found the cause of the
disconnects. What led me to the answer was this presentation at Cisco
Live 2013 in Orlando:
https://www.ciscolive365.com/connect/sessionDetail.ww?SESSION_ID=7808&backBtn=true
For those of you who haven't seen that, it's excellent and got me
pointed in the right direction in terms of where to look. Specifically I
downloaded the "WLC Config Analyzer" and have been working on issues
that it has found...mostly with RRM constantly changing channels and Tx
Power on some APs.
I do think I'm going to disable Client Load Balancing, but it is not the
primary cause of the issues. Happy to share war stories if anyone out
there is interested.
Thanks again.
-dan
Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
dbris...@uvm.edu
On 10/23/2013 9:41 AM, Dan Brisson wrote:
I should have also mentioned that we are on 7.4.110 for all of our
controllers.
-dan
Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
dbris...@uvm.edu
On 10/23/2013 9:40 AM, Dan Brisson wrote:
Lee,
We do have v6 enabled for our main campus SSID. We actually did that
last year over winter break and found that it didn't cause any
issues. At least none that we could attribute.
Thanks,
-dan
Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
dbris...@uvm.edu
On 10/23/2013 9:35 AM, Lee H Badman wrote:
Out of curiosity, have you looked to see if any of the affected
clients have IPv6 enabled (assuming that it's not an IPv6 network)?
-Lee Badman
-----Original Message-----
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Dan Brisson
Sent: Wednesday, October 23, 2013 9:16 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Cisco "Client Load Balancing"
For you Cisco wireless folks out there, I'm curious if you have any
thoughts/recommendations on "Client Load Balancing" in your
Dorms/Residence Halls. I'm chasing a bunch of reports of wireless
users
being kicked off the network for no apparent reason. They are able to
rejoin right away, but it's happening enough times that they've
given up
Skyping or other streaming Internet-based applications. The
interesting
thing is that we are not getting reports of this out in the Academic
buildings but it occurred to me that our design is such that those APs
join to a pair of WiSM2s while our Residence Hall APs join to a pair of
5508s. On the WiSM2s we have NOT enabled Client Load Balancing, but we
did on the 5508s. The rationale we used was that if a wireless client
had 2 APs within decent range, Client Load Balancing would help to keep
the clients from all associating to one of the two APs. Now I'm
wondering if something isn't working quite right and the result is
users
getting bounced.
I have a TAC case open and so far the engineer has come back with
upping
the "Client user idle timeout" from 5 minutes to 1 hr. I'm not
convinced that will help, but also curious if folks have thoughts on
that recommendation.
Thanks,
-dan
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Participation and subscription information for this EDUCAUSE
Constituent Group discussion list can be found at
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**********
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