PoE Problems

[BryanDavidWilliams]

I have a Cisco WS-C3560-8PC in our maintenance dept that shows the following when I run a show power inline.

Interface Consumption Admin
Configured Consumption (Watts)
---------- ----------- -------------------

Fa0/1 NO 0.0
Fa0/2 NO 0.0
Fa0/3 NO 0.0
Fa0/4 NO 0.0
Fa0/5 NO 0.0
Fa0/6 NO 0.0
Fa0/7 NO 0.0
Fa0/8 NO 0.0

I have two Cisco PoE phones hooked up to this switch that are on and I can see when I run show CDP Neighbor any ideas. I have reset the switch physically. I'm guessing this thing is fried I just wanted a second opinion.

Thanks!!

[twin--turbo]

I have a Cisco WS-C3560-8PC in our maintenance dept that shows the following when I run a show power inline.

Interface Consumption Admin
Configured Consumption (Watts)
---------- ----------- -------------------

Fa0/1 NO 0.0
Fa0/2 NO 0.0
Fa0/3 NO 0.0
Fa0/4 NO 0.0
Fa0/5 NO 0.0
Fa0/6 NO 0.0
Fa0/7 NO 0.0
Fa0/8 NO 0.0

I have two Cisco PoE phones hooked up to this switch that are on and I can see when I run show CDP Neighbor any ideas. I have reset the switch physically. I'm guessing this thing is fried I just wanted a second opinion.

Thanks!!

try

conf t
int range f0/1 - 8
power inline auto
exit

[twin--turbo]

and are the phones actualy pulling power or are they perhaps using 48V bricks.

Rob

[BryanDavidWilliams]

They are actually using the PoE for power I double checked. Sorry posted the wrong output they are on auto.

Available:0.0(w) Used:0.0(w) Remaining:0.0(w)

Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Fa0/1 auto off 0.0 n/a n/a 15.4
Fa0/2 auto off 0.0 n/a n/a 15.4
Fa0/3 auto off 0.0 n/a n/a 15.4
Fa0/4 auto off 0.0 n/a n/a 15.4
Fa0/5 auto off 0.0 n/a n/a 15.4
Fa0/6 auto off 0.0 n/a n/a 15.4
Fa0/7 auto off 0.0 n/a n/a 15.4
Fa0/8 auto off 0.0 n/a n/a 15.4

This is a show cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

Device ID Local Intrfce Holdtme Capability Platform Port ID
SEP0025459492A8 Fas 0/3 103 H ATA 186 Port 1
SUSD_RPS_MDF_3750_STACK
Gig 0/1 125 S I WS-C3750- Gig 3/0/7
SEP000427F6032D Fas 0/1 136 H P IP Phone Port 1
SEP0007EB7CB810 Fas 0/4 173 H P IP Phone Port 1

[twin--turbo]

Unusuaul..

try a
power inline never
then
power inline auto

Also
sh interface capabilities
see if it mentions POE.


If you bought it new just get the supplier to raise a TAC with Cisco, if they can't advise of a fix then they will replace it.

[BryanDavidWilliams]

No luck with the first commands. This switch is out of warranty so I think it's time to get a new one. We are going to have our electrician look at the power in this building before replacing the switch.

FastEthernet0/1
Model: WS-C3560-8PC
Type: 10/100BaseTX
Speed: 10,100,auto
Duplex: half,full,auto
Trunk encap. type: 802.1Q,ISL
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off,on,desired),tx-(none)
Fast Start: yes
QoS scheduling: rx-(not configurable on per port basis),tx-(4q2t)
CoS rewrite: yes
ToS rewrite: yes
UDLD: yes
Inline power: yes
SPAN: source/destination
PortSecure: yes
Dot1x: yes

Thanks for all your help with this issue!

[twin--turbo]

It's under cisco lifetime waranty, so long as you know who you got it from.


I would download and install the latest IOS from cisco for the model as it may be a IOS glitch.

Rob

[twin--turbo]

you will need to register but this should eb the link to the IOS's

Cisco Systems

Rob