3750 PoE issues

[DallasBPF]

For some reason when I connect a couple of PoE cameras into the 3750, they will not turn up and I keep getting the following error messages in the loggs;


5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD
5w6d: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa1/0/47: PD removed
5w6d: %ILPOWER-7-DETECT: Interface Fa1/0/47: Power Device detected: IEEE PD


But if I plug them into a Linksys PoE switch, they work fine... They are only using 4177 miliwatts, plus I notice when they attempt to get power from the Cisco switch I am getting the following output when I do a sh power inline;

Fa1/0/47 auto on 7.0 Ieee PD 2 15.4


Any ideas? The PoE camera is a non PoE camera but connects to a Axis 247S video decoder that pushes the PoE to the switch. There is a dip switch that changes the PoE on the decoder from Class 2 to Class 3, tried this and it did not work...

I just find it extremely strange that the Linksys SRW208MP, the camera's light up and start working but if they are in the Cisco switch there is nothing other than the Power attempting to turn on and then turns off...

Any thoughts?

Thanks!

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Dallas, Texas
Telecommunications Tech
CCVP, CCNA, Net+

CCNP in the works

 

[DallasBPF]

Before I forget, the following is the config for one of the ports I am attempting to use;

interface FastEthernet1/0/47
description Unassigned
switchport access vlan 10
switchport trunk encapsulation dot1q
switchport mode dynamic desirable
switchport voice vlan 35
speed 100
duplex full
srr-queue bandwidth share 10 10 60 20
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone

And decided to change a few things here is the other config for the other port;

interface FastEthernet1/0/45
description Unassigned
switchport access vlan 10
switchport voice vlan 35
speed 100
duplex full
srr-queue bandwidth share 10 10 60 20
priority-queue out
mls qos trust cos
auto qos voip trust
spanning-tree portfast

using c3750-ipbasek9-mz.122-44.SE3.bin IOS

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Dallas, Texas
Telecommunications Tech
CCVP, CCNA, Net+

CCNP in the works

 

[burtsbees]

If they are non-PoE, have you tried turning off the inline power(power-inline none)? Also, does a Cisco phone work in the switch? Does it happen in all ports on the 3750?
Can you post a sh int fa1/0/47? That should show if it truly has power, and how much...

Burt

 

[DallasBPF]

The Axis decoder turns them into PoE cameras(they are coax cameras that go into a coax to ethernet/PoE box), about to head down stairs and play around a lil with the switch to test a few theories, along with some of yours and let you know how it goes with a few results.

------------------------------------
Dallas, Texas
Telecommunications Tech
CCVP, CCNA, Net+

CCNP in the works

 

[lerdalt]

There is a way that you can set the power on the 3750 ports to a static setting. Cisco AP's I know when they power up will draw 15.4 watts for a little bit and then drop off after they are up. Something you might want to look into though is setting the power on the port so it can't go above a certain level.

I have also seen where a bad cable will cause a similar problem.

 

[DallasBPF]

Just took a phone down there and plugged it directly into the two ports in question, and the phone started to make the pop sound when it is getting power but it kept making it over and over as if the power was goin up and down constantly. I took two other ports that were not being used by phones and moved them over to the bad ports...

Now I need to find out why one is set to Class 3 and using 15.4watts and the other is set to Class 2 and using 7watts...



1A#sh int fa1/0/31
FastEthernet1/0/31 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0015.2b50.00a3 (bia 0015.2b50.00a3)
Description: Unassigned
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 537
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
4640537 packets input, 436493469 bytes, 0 no buffer
Received 1835 broadcasts (93 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 93 multicast, 0 pause input
0 input packets with dribble condition detected
19726525 packets output, 22053816174 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
1A#sh int fa1/0/32
FastEthernet1/0/32 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0015.2b50.00a4 (bia 0015.2b50.00a4)
Description: Unassigned
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 16:02:09, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
6006953 packets input, 1190207911 bytes, 0 no buffer
Received 82048 broadcasts (59934 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 59934 multicast, 987 pause input
0 input packets with dribble condition detected
15747489 packets output, 8386468893 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out

------------------------------------
Dallas, Texas
Telecommunications Tech
CCVP, CCNA, Net+

CCNP in the works