Cisco 3850 Poe switch - Power Issue with ports

[Yasmeen]

Hi Team, 

            We are using Cisco 3850 Poe - 24 port Switch. i have connected Cisco AP's with Each port. we are trying to get 8 APs powered up using POE from Cisco 3850 and only some are coming up. remaining Ports are down not providing power to AP's 

we have done factory reset to switch - after that also not powered up 

Pls find the below SHow power inline output

I#show power inline

Module Available Used Remaining
(Watts) (Watts) (Watts)
------ --------- -------- ---------
1 720.0 0.0 720.0
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/1 auto off 0.0 n/a n/a 30.0
Gi1/0/2 auto off 0.0 n/a n/a 30.0
Gi1/0/3 auto off 0.0 n/a n/a 30.0
Gi1/0/4 auto off 0.0 n/a n/a 30.0
Gi1/0/5 auto off 0.0 n/a n/a 30.0
Gi1/0/6 auto off 0.0 n/a n/a 30.0
Gi1/0/7 auto off 0.0 n/a n/a 30.0
Gi1/0/8 auto off 0.0 n/a n/a 30.0
Gi1/0/9 auto off 0.0 n/a n/a 30.0
Gi1/0/10 auto off 0.0 n/a n/a 30.0
Gi1/0/11 auto off 0.0 n/a n/a 30.0
Gi1/0/12 auto off 0.0 n/a n/a 30.0
Gi1/0/13 off off 0.0 n/a n/a 30.0
Gi1/0/14 off off 0.0 n/a n/a 30.0
Gi1/0/15 off off 0.0 n/a n/a 30.0
Gi1/0/16 off off 0.0 n/a n/a 30.0
Gi1/0/17 off off 0.0 n/a n/a 30.0
Gi1/0/18 off off 0.0 n/a n/a 30.0
Gi1/0/19 off off 0.0 n/a n/a 30.0
Gi1/0/20 off off 0.0 n/a n/a 30.0
Gi1/0/21 off off 0.0 n/a n/a 30.0
Gi1/0/22 off off 0.0 n/a n/a 30.0
Gi1/0/23 off off 0.0 n/a n/a 30.0
Gi1/0/24 off off 0.0 n/a n/a 30.0

All of my Oper shows off state - how do i change it as - On state 

switch Model and Image 

Switch                 Ports Model              SW Version       SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 32 WS-C3850-     24P                   03.03.04SE       cat3k_caa-universalk9 INSTALL

>show power inline gigabitEthernet 1/0/7 detail
Interface: Gi1/0/7
Inline Power Mode: auto
Operational status: off
Device Detected: no
Device Type: n/a
IEEE Class: n/a
Discovery mechanism used/configured: Ieee and Cisco
Police: off

Power Allocated
Admin Value: 30.0
Power drawn from the source: 0.0
Power available to the device: 0.0

Actual consumption
Measured at the port: 0.0
Maximum Power drawn by the device since powered on: 0.0

Absent Counter: 0
Over Current Counter: 0
Short Current Counter: 0
Invalid Signature Counter: 0
Power Denied Counter: 0

Power Negotiation Used: CDP
LLDP Power Negotiation --Sent to PD-- --Rcvd from PD--
Power Type: - -
Power Source: - -
Power Priority: - -
Requested Power(W): - -
Allocated Power(W): - -

How do i on the oper in power inline 

pls help me on it 

Thanks,

Reagrds,

Yasmeen Shaul Hameed

[balaji.bandi]

EDIT : ( worth looking this BUG)

you have 720W PSU, even you connect 8 X  15.4 IEEEPD = that is around 130W, you still have some space to get hook more AP.

what is the error log you see when you connect more AP on the Logs

Look at the log show Logging

as per your output nothing connecting for now ? or is there any AP connected here ?

[Leo Laohoo · Accepted solution]

There are A LOT of PoE bugs in early 3.X.X versions.
I recommend upgrading the switch to, a minimum of, 16.6.X.

[Yasmeen]

Hi Hall of Fame Community Legend Leo Laohoo
could you please post the output of current version in the switch and latest supported version for this model

[balaji.bandi]

As i have suggested the bug on other post

you can upgrade to 16.6.6 and test and advise.

Bug URL for information :

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj76259/?rfs=iqvred

[Leo Laohoo]

The last IOS-XE version to support the 3850 is 16.12.X.
Make sure to read the Release Notes. 16.12.X has Cisco Smart Licen$ing enabled. 16.6.X still works on "traditional" licensing schemes.

[Yasmeen]

Hi Team,
How to i find the Cisco WS3850 switch Part number - We are using cisco ws-c3850-24p
When i try to get the latest image from CIsco software.com, I found three Different Models
cisco ws-c3850-24p - E
cisco ws-c3850-24p - S
cisco ws-c3850-24p - L
Which model Image will compatible with my cisco ws-c3850-24p switch
Pls let me know the option
I Have Tried below commands to find the Switch Model and part number
Show Inventory
Show platform hardware
Show Version
Pls let me know compatible latest image for cisco ws-c3850-24p
WHat is the difference Between
cisco ws-c3850-24p - E
cisco ws-c3850-24p - S
cisco ws-c3850-24p - L


Thanks,
Regards,
Yasmeen Shaul Hameed.

[coolbreeze]

Typically on catalyst switches the command to show model with license code is:   #show inventory

Example:

AggrSwitch#  sh inventory

NAME: "c38xx Stack", DESCR: "c38xx Stack"
PID: WS-C3850-48U-S , VID: V06 , SN: ##########

The difference is as follows for license codes in Catalyst switch product IDs:

E = ip services i.e. layer 3 license

S = ip base i.e. 'layer 2 plus' - allows for EIGRP stub routing but does not do BGP or other [advanced] routing/ip service capabilities

L = lan base i.e. layer 2 strictly - does not implement ip routing features or commands

If your "#show inventory" command does not yield the product ID you need for firmware upgrade utilizing proper license level, you can do a #show license right-to-use (or tab out from show and show license in case the command changed).  It will show whether you are using ip services (3850-24P-E) or ip base (3850-24P-S) or lan base (3850-24P-L).

Also note, the PoE level for the product is similar and can be looked up on the product sheets on cisco.com.

For example:

3850-24P is PoE+

3850-24U is UPoE

3850-24T is no PoE

etc.