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3850 port issues

garrisonro
Level 1
Level 1

We have installed several Catalyst 3850 48 port switches on campus.  I have run into 3 incidences where a system connected to the port will not work (different buildings and different switches).  A wire scope of the port reveled no problems, port security was off, and there were no log messages other than port up/down.  I was not able to see a mac address of the system connected to the port.  A different system exhibited the same behavior on the same port.  Moved to a different port and all is well.  This the 3rd (separate) switch that has done this.  Has anyone else seem this?  

Thanks

Bob G

2 Accepted Solutions

Accepted Solutions

Charles Hill
VIP Alumni
VIP Alumni

There is a bug CSCui93088 that describes this behavior, however it is with poe ports.

This fix is to do a

shut/no shut

or

plug a non poe device into the port, then plug the poe device back into the port and all is well.

 

Hope this helps...

If so, please rate.

Thanks.

View solution in original post

Dan Lukes
VIP Alumni
VIP Alumni

Note the Feedback Forum is a "Please do not post content other than feedback regarding the Cisco Support Community experience within this community." kind of forum.

So I moved this thread to more appropriate one.

View solution in original post

5 Replies 5

Charles Hill
VIP Alumni
VIP Alumni

There is a bug CSCui93088 that describes this behavior, however it is with poe ports.

This fix is to do a

shut/no shut

or

plug a non poe device into the port, then plug the poe device back into the port and all is well.

 

Hope this helps...

If so, please rate.

Thanks.

Will give that a try...thanks

Bob

Your welcome.

 

Dan Lukes
VIP Alumni
VIP Alumni

Note the Feedback Forum is a "Please do not post content other than feedback regarding the Cisco Support Community experience within this community." kind of forum.

So I moved this thread to more appropriate one.

Thanks for rating, but I wish you should select the Charles Hill's response as the correct one, not my moderator's notice ...