Troubleshooting Overruns on a Gigabit interface

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I've got a port on one of my 6509's that seems to incrimenting input 
overruns at a rate of about two per second.

The interface is a 1gig interface and its going input rate is less than 
3000 packets per second, about 32mbps. rxload is 8/255.

Input queue: 0/2000/8014/0 (size/max/drops/flushes); Total output drops: 0

None of the interfaces are doing this and many are traveling much 
faster, thinking it may be a faulty port but could use some confermation.

Thanks,

-Wil
0
Reply Wil 3/12/2006 6:17:15 PM

It could be cable or bad nic or bad network drivers.

If you have quite new IOS (there will be about 20 sek time out for that 
interface)
test cable- tdr int gi3/1
sh cable- tdr int gi3/1

> I've got a port on one of my 6509's that seems to incrimenting input 
> overruns at a rate of about two per second. 


0
Reply Make 3/12/2006 6:26:56 PM


Hi,

what about the processor ?
Input drops can occur due to hich processor utilisation.
Take a look on it with 'show process cpu' and 'show process cpu history'.

Greetings,
Gerald

"Wil" <wil@SPAM.THIS> schrieb im Newsbeitrag 
news:441465b3$0$95999$742ec2ed@news.sonic.net...
> I've got a port on one of my 6509's that seems to incrimenting input 
> overruns at a rate of about two per second.
>
> The interface is a 1gig interface and its going input rate is less than 
> 3000 packets per second, about 32mbps. rxload is 8/255.
>
> Input queue: 0/2000/8014/0 (size/max/drops/flushes); Total output drops: 0
>
> None of the interfaces are doing this and many are traveling much faster, 
> thinking it may be a faulty port but could use some confermation.
>
> Thanks,
>
> -Wil 


0
Reply Gerald 3/13/2006 8:57:45 AM


> I've got a port on one of my 6509's that seems to incrimenting input
> overruns at a rate of about two per second.

Move to another port to see if problem follows and post results

0
Reply Merv 3/13/2006 10:24:35 AM

Thanks , pretty sure its a driver issue on the host.

-Wil

Make wrote:
> It could be cable or bad nic or bad network drivers.
> 
> If you have quite new IOS (there will be about 20 sek time out for that 
> interface)
> test cable- tdr int gi3/1
> sh cable- tdr int gi3/1
> 
> 
>>I've got a port on one of my 6509's that seems to incrimenting input 
>>overruns at a rate of about two per second. 
> 
> 
> 
0
Reply Wil 3/13/2006 9:31:15 PM

Can't move it at this point, gotta wait until the weekend :)

-Wil

Merv wrote:

> 
>>I've got a port on one of my 6509's that seems to incrimenting input
>>overruns at a rate of about two per second.
> 
> 
> Move to another port to see if problem follows and post results
> 
0
Reply Wil 3/13/2006 9:32:12 PM

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