cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
938
Views
0
Helpful
3
Replies

C2960X POE+ problem

Hi,

 

I have problem with POE+ negotiation. I have WS-C2960X-48FPS-L and several POE+ devices (AMX N2412A encoders, BSS-Audio BLU-50 etc.). When I connect them to the port they power on but only with 15.4W, I guess so they doesn't work, obviously. They work with SG300-10MPP fine.

 

I have tried:

power inline static max 3000

power inline consumption 3000

power inline port 2x-mode

 

My IOS ver:  Version 15.2(4)E, but have tried latest as well.

 

Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/20 static on 30.0 Ieee PD 4 30.0
Gi1/0/21 auto off 0.0 n/a n/a 30.0
Gi1/0/22 auto off 0.0 n/a n/a 30.0
Gi1/0/23 auto off 0.0 n/a n/a 30.0
Gi1/0/24 auto off 0.0 n/a n/a 30.0
Gi1/0/25 auto off 0.0 n/a n/a 30.0
Gi1/0/26 auto on 15.4 Ieee PD 4 30.0

 

Log:

:01.898: %ILPOWER-7-DETECT: Interface Gi1/0/26: Power Device detected: IEEE PD
Dec 20 10:11:02.978: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/26: Power granted
Dec 20 10:11:11.996: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:11:12.995: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:12:48.996: %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi1/0/26: Power Controller reports power Imax error detected
Dec 20 10:12:50.114: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:12:51.117: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:12:58.856: %ILPOWER-7-DETECT: Interface Gi1/0/26: Power Device detected: IEEE PD
Dec 20 10:12:59.716: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/26: Power granted
Dec 20 10:13:08.915: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:13:09.918: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:14:46.115: %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi1/0/26: Power Controller reports power Imax error detected
Dec 20 10:14:47.191: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:14:48.198: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:14:56.017: %ILPOWER-7-DETECT: Interface Gi1/0/26: Power Device detected: IEEE PD
Dec 20 10:14:57.230: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/26: Power granted
Dec 20 10:15:06.310: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:15:07.313: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:16:46.418: %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi1/0/26: Power Controller reports power Imax error detected
Dec 20 10:16:47.875: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:16:48.879: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:16:56.222: %ILPOWER-7-DETECT: Interface Gi1/0/26: Power Device detected: IEEE PD
Dec 20 10:16:57.417: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/26: Power granted
Dec 20 10:17:06.159: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:17:07.159: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:18:43.942: %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi1/0/26: Power Controller reports power Imax error detected
Dec 20 10:18:45.554: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:18:46.560: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:18:53.855: %ILPOWER-7-DETECT: Interface Gi1/0/26: Power Device detected: IEEE PD
Dec 20 10:18:54.819: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/26: Power granted
Dec 20 10:19:03.914: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:19:04.917: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to up
Dec 20 10:19:10.321: %LINK-5-CHANGED: Interface GigabitEthernet1/0/20, changed state to administratively down
Dec 20 10:19:12.278: %ILPOWER-7-DETECT: Interface Gi1/0/20: Power Device detected: IEEE PD
Dec 20 10:19:13.498: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/20, changed state to down
Dec 20 10:19:13.498: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/20: Power granted
Dec 20 10:20:41.683: %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi1/0/26: Power Controller reports power Imax error detected
Dec 20 10:20:41.799: %SYS-5-CONFIG_I: Configured from console by adampieron on vty0 (192.168.1.254)
Dec 20 10:20:43.197: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/26, changed state to down
Dec 20 10:20:44.196: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/26, changed state to down

 

Any suggestions?

regards,

Adam

3 Replies 3

pieterh
VIP
VIP

as you connect non-cisco devices, PoE(+) negotiation is not done by using CDP.

you may need to enable LLDP.

Hi,

 

Doesn't work - I think LLDP is enable by default. I have even tried to disable cdp but it hasn't help neither.

 

I wanted to check in an see if you found a solution to the problem. I have just begun seeing issues with 4800 series APs and my 3850 switches running 16.6.4a code. 

Review Cisco Networking for a $25 gift card