I have a ws-c2960-24tc (12.2(35))and a WS-C2960-24TTc (12.2(25)).
I was trying to power 3 wireless access points AP 1242's though them. I found a Cisco document that stated that you could only run a limited number of power injectors through this switch series. I have lost the document, it was a Cisco and at the time I was looking for the error on low state power injector. Does have the document or can give me link to it? I have been searching for days.
Re: Looking for Document about Power Over Ethernet
Here is some more related info (this looks like a problem with the mac-address);
Following the low power status message, two extra messages are displayed on the console port or when using a Telnet session that identify the actions needed to resolve this low power problem:
-Verify the required power injector is installed on this port: ().
(where indicates the CDP device detected by the access point and
indicates the Ethernet port of the CDP device.
-If a power injector is installed, issue the command: power inline negotiation injector installed.
â¢%CDP_PD-2-POWER_LOW: All radios disabled- LOW_POWER_CLASSIC_INJECTOR_
CONFIGURED_ON_ANOTHER_PORT ()-This message indicates the access point is in low power mode with all radios disabled and has detected a CDP device that is unable to supply sufficient power to the access point. A power injector has been configured, but it is for another port. It is likely that the access point has been relocated and has not been reconfigured for a new power injector.
The indicates the CDP device detected by the access point. The indicates the MAC address of the CDP device, typically, the switch port.