Hi, just my 2 cents on that old topic, in order to help others, just in case. It seems that ports down (or not connected) is an issue experienced by some. I've asked same question months ago on Cisco forum, but no one had an answer. And Cisco bug toolkit was to no avail
So, Cisco CPD series like this one (WS-C3560CPD-8PT-S) are mainly intended to be powered from uplink, i.e. Gi0/9 or Gi0/10, but they can be also powered from a power brick. Here's what gives a 'sh env all' from a working 3560CPD powered from interface Gi0/10 (output is a bit self-explanatory
);
(...)
PoE Power - Available:0.0(w) Backup:0.0(w)
Power Source Type Power(w) Mode
-------------- -------------- --------- ---------
Gi0/10 Type2 30(w) Available
Available : The PoE received on this link is used for powering this switch and
providing PoE pass-through if applicable.
Back-up : In the absence of 'Available' power mode, the PoE received on this
link is used for powering this switch and providing PoE pass-through
if applicable.
Available*: The PoE received on this link is used for powering this switch but
does not contribute to the PoE pass-through.
Back-up* : In the absence of 'Available' power mode, the PoE received on this
link is used for powering this switch but does not contribute to
the PoE pass-through.
NWX03#These devices are VERY sensitive to power used. Of the two devices I own, only one worked with the power supply of a WLC2504 (same pinout, same supply, more wattage), and none worked with same power supply from eBay China (supply that works though on the same WLC2504). You got the message:
*Jan 2 00:00:39.436: %PLATFORM_ENV-1-PWR_LOPWR: Switch is operating in low power mode, switch is not fully operational. Current power source is Gi0/10-Type1
*Jan 2 00:00:39.442: %PDPSE-5-PWR_SRC_DISC: Power source change from to Gi0/10. Current power source is Gi0/10And all interfaces are NOT connected. But when you get it works, you have these messages:
*Jan 2 00:00:55.880: %PLATFORM_ENV-6-PWR_OPTIMAL: Switch is fully operational. Current power source is Gi0/10-Type2
*Jan 2 00:00:55.889: %CDP_PD-4-POWER_OK: 30 W power - NEGOTIATED inline power source on port Gi0/10And then, interfaces are up:
*Jan 2 00:00:59.627: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
*Jan 2 00:00:59.669: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up
*Jan 2 00:00:59.674: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to upWhen powered from PoE, it ***may*** works from a Cisco device, but you must have CDP enabled to get it works - I enabled CDPv2, a
timer of 15s (I think this is what solved the issue but I may be wrong) and '
power inline port 2x-mode' on interface of 3560CG PoE that powers it to get it works. I've tested with a reload of the device to confirm.
@Kyle: if I remove CDP from port where device is connected, interfaces never come up ...
Not sure if that this is a device that I would purchase again ...