Lee,
How old are these 1130s? Some older ones have issues using all the
5GHz bands, they may have other issues.
Check the Field Notices on CCO.
Bruce T. Johnson | Network Engineer | Partners Healthcare
Network Engineering | 617.726.9662 | Pager: 31633 | bjohns...@partners.org
149 13th Street, 10th Floor, Mailstop 10055B, Charlestown, Ma 02129
On Mar 19, 2009, at 11:13 AM, "Lee H Badman" <lhbad...@syr.edu> wrote:
Running 4.2.176, but have seen this going back to 3.2. Is an
occasional occurrence, rarely the same AP twice, and usually
somewhat out of the blue.
For us, cabling can be ruled out (for the most part). I know Bruce
suggested disabling CDP on AP ports, but that’s really not an option
as we rely on that information- need all the help we can get keepin
g track of 2,000+ APs. When one loses its controller association but
still has IP address, CDP can be used to find it to kill/restore po
wer for remote reboot- needed on occasion.
I’m getting the sense that we are not alone in these power issues…
Lee H. Badman
Wireless/Network Engineer
Information Technology and Services
Syracuse University
315 443-3003
From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
] On Behalf Of Hector J Rios
Sent: Thursday, March 19, 2009 10:35 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Have to lie to LWAPP APs about power
injectors?
Lee,
What version of controller code are you running? I’m sure you know t
his but just make sure the Cisco PoE is providing standard 802.3af,
otherwise you have to check the “PreStandard” box. It’s
interesting because we had a similar issues a while ago, but with in
jectors, as opposed to the switches. Usually unchecking all the opti
ons for the AP under “PoE ethernet settings” and restarting the
AP would do the trick. Finally, check your cables and make sure ther
e are no attenuation issues or a cut somewhere along the line.
Thanks
Hector Rios
Louisiana State University
From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
] On Behalf Of Lee H Badman
Sent: Thursday, March 19, 2009 9:00 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Have to lie to LWAPP APs about power
injectors?
Wondering if anyone else experiences this. I’m working now to see if
it is isolated to a single Catalyst switch or if it is more widespr
ead. Frequently, we will get a report that a radio on an LWAPP AP is
down. Sometimes the alarm is for insufficient drawn power, sometime
s not- just radio down. Better than 90% of the time, a simple AP reb
oot will not do any good- we have to lie to the controller that the
AP has a PoE injector installed, even though the AP is on a switch.
Usually the condition is onesy-twoesy- not every AP on a given switc
h (although this morning we saw that) and often happens on APs that
are obviously not taxing a given switch’s available PoE output.
I am opening a case as we see this enough to be of concern, but also
am wondering if anyone else has experienced this in a given
environment where LWAPP APs are powered by Cisco PoE switches?
Thanks-
Lee
Lee H. Badman
Wireless/Network Engineer
Information Technology and Services
Syracuse University
315 443-3003
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