[c-nsp] Input errors, overrun & unknown protocols drops on LAN interface

[Farooq Razzaque]

Dear David
 
How can we resolve this then



 


 


> Subject: Re: [c-nsp] Input errors, overrun & unknown protocols drops on LAN interface
> From: david.rothera at gmail.com
> Date: Tue, 13 Sep 2011 14:04:57 +0100
> CC: nick at foobar.org; cisco-nsp at puck.nether.net
> To: farooq_mcp at hotmail.com
> 
> Input drops are usually caused by the input queue filling up and then tail drops occurring because there is no more space for new packets in the queue.
> 
> I've seen this happen where you have an upstream device trying to send packets faster than the downstream device can process them.
> 
> 
> On 13 Sep 2011, at 13:54, Farooq Razzaque wrote:
> 
> > 
> > Dear Nick
> > 
> > Thanks for your reply.
> > 
> > What does input error means ?
> > 
> > I am also having the drops in Input queue
> > 
> > 
> > 
> > Input queue: 0/75/3267688/769 (size/max/drops/flushes); Total output drops: 0
> > 
> > 
> > 
> > 
> > 
> > 
> >> Date: Tue, 13 Sep 2011 12:18:05 +0100
> >> From: nick at foobar.org
> >> To: farooq_mcp at hotmail.com
> >> CC: cisco-nsp at puck.nether.net
> >> Subject: Re: [c-nsp] Input errors, overrun & unknown protocols drops on LAN interface
> >> 
> >> On 13/09/2011 10:13, Farooq Razzaque wrote:
> >>> I am facing the input errors, overrun & unknown protocols drops on LAN
> >>> interface-Gi0/0 (having sub-interface) on MPLS router.
> >> 
> >> port overruns mean that your router is receiving data faster than it can
> >> handle. You either need a faster router than a 3800 series or else larger
> >> input buffers.
> >> 
> >> Unknown protocols means that your switch is sending data that the router
> >> doesn't understand. Maybe LLDP or something? Or some other odd LAN protocol?
> >> 
> >> Nick
> > 
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