Hi folks,
I encounter a (very) strange behaviour with two compact switches 3560 CPD (WS-C3560CPD-8PT-S). Both are from the same batch, and have a serial starting by 'FOC1848xxxx'. They were purchased used. What I want is that devices are powered by their interfaces G0/9 & G0/10. We could expect that it works, but:
- If devices are powered with PoE+ uplinks (30W each), they powers up (pretty obvious), but interfaces G0/1 - 8 remain desesperately down ...
- When devices are powered with a power brick (w/ or w/o PoE on G0/9 and G0/10), then interface(s) come up...
Here's below what I get from CLI, device(s) being powered by a 3560X-24P-S (PoE+, hence 30W per port), with and without brick:
C3560C#sh env all
(...)
PoE Power - Available:15.4(w) Backup:15.4(w)
Power Source Type Power(w) Mode
-------------- -------------- --------- ---------
A.C. Input Auxilliary 51(w) Available
Gi0/9 Type2 30(w) Back-up
Gi0/10 Type2 30(w) Back-up
(...)
Or, without brick:
C3560C#sh env all
(...)
PoE Power - Available:15.4(w) Backup:0.0(w)
Power Source Type Power(w) Mode
-------------- -------------- --------- ---------
Gi0/9 Type2 30(w) Available
Gi0/10 Type2 30(w) Available
Logged issue:
C3560C#sh log
(...)
Log Buffer (10240 bytes):
*Jan 2 02:00:36.705: %SYS-5-CONFIG_I: Configured from console by console
*Jan 2 02:00:51.500: %PDPSE-5-PWR_SRC_DISC: Power source change from Auxilliary Power + Gi0/9 + Gi0/10 to Gi0/9 + Gi0/10. Current power source is Gi0/9 + Gi0/10
*Jan 2 02:01:06.605: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan2, changed state to down
*Jan 2 02:01:07.596: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/5, changed state to down
*Jan 2 02:01:08.602: %LINK-3-UPDOWN: Interface GigabitEthernet0/5, changed state to down
*Jan 2 02:13:10.337: %PDPSE-5-PWR_SRC_DISC: Power source change from Gi0/9 + Gi0/10 to Auxilliary Power + Gi0/9 + Gi0/10. Current power source is Auxilliary Power
*Jan 2 02:13:17.919: %LINK-3-UPDOWN: Interface GigabitEthernet0/5, changed state to up
*Jan 2 02:13:18.920: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/5, changed state to up
*Jan 2 02:13:45.931: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan2, changed state to up
C3560C#sh cdp nei
(...)
Device ID Local Intrfce Holdtme Capability Platform Port ID
Switch Gig 0/10 172 S I WS-C3560X Gig 0/23
Switch Gig 0/9 137 S I WS-C3560X Gig 0/24
NWX02 Gig 0/5 147 S I WS-C2960C Gig 0/3
Total cdp entries displayed : 3
C3560C#
Of course, I have tried PoE powering with other devices, without any improvement (a 2960 PoE, and a 3560 compact PoE).
What I want is to power these devices without any power brick, in a remote location. So, if ever you have any idea, it is very welcome - since I'm really stuck on that behaviour.
Thanks in advance for your help!
