Check POE. If they are not getting enough power the radio will be up
administratively sine you did not disable, but will be down
operationally because there is not enough power.
Go to the AP on the controller and look at the Advanced tab, in the
upper right there is Power Over Ethernet Settings.
If the power injector or switch is Pre-standard 802.3af switches check
the box.
For the AP to Power Injector State check the box.
For Power Injector Selection either choose Installed, or if you know the
injector has more than enough power choose Override to force the radios on.
If you choose Installed, you should see the power inject MAC appear and
the AP should be able to communicate with the power inject to see how
much power is available.
Kevin McCormick
Western Illinois University
On 9/10/2015 11:32 AM, Gregg Heimer wrote:
Anyone with Cisco APs and Cisco Prime get these odd alerts from PI
that state the radio is administratively up but operationally down
with a reason of unknown? I have been getting a slew of these
lately. We have introduced quite a few 1702’s into our environment
and I am wondering if there is some issue with recalculation, or
something that triggers a radio reset to resolve a different issue?
Below is the alert notification. Cisco forums haven’t been much help,
so I figured I’d take a shot at the group. Thanks!
Virtual Domain: ROOT-DOMAIN
PI has detected a change in one or more alarms of category AP and
severity Critical in Virtual Domain ROOT-DOMAIN.
The new severity of the following items is Clear:
1. Alarm Condition:Radio administratively up and operationally down
Message: '802.11a/n/ac' interface of AP 'AP01-XXXX' associated to
controller ‘XXXXXX (172.X.X.X)' is down. Reason: Unknown - Device
Name: ‘XXXXXXXXX Failure Source: AP AP01-XXXX, Interface 802.11a/n/ac
___________________________________
Gregg Heimer
Sr. Network Engineer
Montgomery County Community College
340 Dekalb Pike
Blue Bell, PA 19422
ghei...@mc3.edu <mailto:jsta...@mc3.edu>
215.641.6442
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