[cisco-voip] 3650 PoE Issue

[Joe Martini]

Sounds very similar to https://tools.cisco.com/bugsearch/bug/CSCui25555/ <https://tools.cisco.com/bugsearch/bug/CSCui25555/>, however you should have the fix already.  Good idea to open a TAC case to look into this.

Joe

On Sep 30, 2015, at 8:33 AM, Casper, Steven <SCASPER at mtb.com> wrote:

Having an issue related to PoE negotiation between 3650 switches that we are beginning to deploy  and older cisco phones such as 7960s and 7940s . I think these are using the pre PoE standard. Symptoms are when the stack reloads  the  switchports connected to Cisco 7960 telephones come up  in a hung state:
 
7960 Telephones showed no power
No link lights on switchport
Switchport status showed UP/UP
Switchport remained in UP/UP state even after disconnecting the cable from switchport
Shut/no shut port and the telephone would reboot normally
Moving to available switchport and telephone rebooted normally
Bypassed telephone and connected PC and the PC would reboot normally reconnected telephone and the telephone would reboot normally.
 
Newer phones such as 7942 come right up.
 
Once we performed a shut/no shut on all switch ports and all telephones recovered normally but still this is not normal behavior. Going to open a TAC case but wondering if anyone else has experienced  this?
Switches are WS-C3650-48PD on Version 03.03.05SE.
 
Thanks!
Steve
 
 
 
 
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