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PoE not working on 3850 Switch

omprakash.p1
Level 1
Level 1

Hi,

 

I am experiencing an issue with PoE on Cat WS-C3850-48U switch interfaces. It was working good before, after few days when i connect an IP phone it is not powering on. I able to see that few ports on the same switch are functioning good and Access points connected.

 

Non working interface: Connected to IP phone

 

Interface Admin  Oper       Power   Device              Class Max
                            (Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/29  auto   off        0.0     n/a                 n/a   60.0

 

sh runn int gi1/0/29

interface GigabitEthernet1/0/29
 switchport access vlan XX
 switchport mode access
 switchport voice vlan XX

 

Working interface:  Connected to Access Point

 

Gi1/0/47  auto   on         15.4    MR32                4     60.0

 

Switch SW version: IOS-XE

Model                        SW Version        SW Image      
---------                 ----------            ----
WS-C3850-48U       03.03.05SE        cat3k_caa-universalk9

 

Any advise on how to resolve this?

 

Thanks in advance!!

1 Reply 1

Mark Malone
VIP Alumni
VIP Alumni

what type of IP phone and what type of POE is it using ? were they working on this switch before ?

 

is there still power avilable in the show power inline

 

have you tried altering the power inline settings under the interface with ...power inline ?