3750 switch with 1142 AP problem

alex goshtaei · ‎04-25-2011

Hi All,.

there are 7 APs connected to 3750 switch. 6 of them registered to the WLC without any problem, but one of them is not registered. "show power inline" shows ieee PD for that AP. I've did "power inline static max 15400", "no lldp receive" and "no lldp transmit", but still there is no luck. when I connected the AP to other switch, it's registered to WLC without any problem. any suggestion would be appreciated:

#show power inline

Fa1/0/1   auto   on         15.4    AIR-LAP1142N-A-K9   3     15.4
Fa1/0/2   auto   on         15.4    AIR-LAP1142N-A-K9   3     15.4
Fa1/0/3   auto   on         15.4    AIR-LAP1142N-A-K9   3     15.4
Fa1/0/4   auto   on         15.4    AIR-LAP1142N-A-K9   3     15.4
Fa1/0/5   auto   on         15.4    AIR-LAP1142N-A-K9   3     15.4
Fa1/0/6   static on         15.4    Ieee PD                      3     15.4
Fa1/0/7   auto   on         15.4    AIR-LAP1142N-A-K9   3     15.4
Fa1/0/8   auto   on         15.4    AIR-LAP1142N-A-K9   3     15.4
Fa1/0/9   auto   off          0.0     n/a                 n/a   15.4

Switch Ports Model              SW Version            SW Image
------ ----- -----              ----------            ----------
*    1 26    WS-C3750V2-24PS    12.2(50)SE1           C3750-IPBASEK9-M

Leo Laohoo · ‎04-25-2011

Fa1/0/6 static on 15.4 Ieee PD 3 15.4

I've seen outputs like these for the last 12 months. This is mostly caused by faulty cabling. Unfortunately, your 3750 is a non-Gig ethernet so you are unable to use TDR to verify if your copper link (from the switch port up to the AP) is faulty.