Pause Input errors

[Haberdabers]

Hi All,

I have 2 3750-x's in a stack configuration. I have two servers which lost heartbeats with each other a few days a go Each server has each NIC going into one port of the stack.

Gi1/0/9 and Gi2/0/9 which plugs into one of the servers has a large "Pause Input" count which is negative. So looks like:

-231241434 Pause Input

I know pause inputs is the connected device sending a pause command. What could be the cause of this?

[Leo Laohoo]

If you are getting a NEGATIVE value in your interface counters, it's a an IOS bug.  

What IOS version are you using.

[Haberdabers]

Hi Leo

Thanks for the reply. Show version shows = 12.2(53r)se1.

Is this a reporting bug or a bug which affects the system operation?

[Leo Laohoo]

Errrr ... That's your IOS?  Geez.  Count yourself lucky your switch doesn't have any issues.  

12.2(53)SE-series IOS is one of the worst I've ever tested.  

If I was to recommend a good IOS, it'll be 12.2(55)SE9.  

[Haberdabers]

I had a feeling that an upgrade may help the situation and im currently going through change management to get this actioned.

Would you not recommend running 15.x yet? 

[Leo Laohoo]

If you really want to go 15.X then stick with 15.0(2)SE4.  But my first choice will be 12.2(55)SE9.