[nsp] Overruns?

[Stephen J. Wilcox]

not sure on the oversubscription.. the overrun relates to the ethernet receiver 
itself which may or may not be a shared function of the blade 

i was going to add tho that overruns can be caused by junk on the line: 
crosstalk, bad cable crimping or a faulty transmitter/receiver, so you can get 
them on very low usage links .. 

Steve


On Thu, 24 Jun 2004, Voll, Scott wrote:

> It seems as thou it's not the pix but the 10/100/1000 blade in the
> cat6509.  If I plug it into another blade the problems goes away.  I
> think I'm coming up to an over subscription on the 48 port gig blade
> with sup1a/msfc2.  Would this be a correct assumption?
> 
> Scott 
> 
> -----Original Message-----
> From: rwcrowe at comcast.net [mailto:rwcrowe at comcast.net] 
> Sent: Thursday, June 24, 2004 2:08 PM
> To: Voll, Scott
> Cc: Portland Area Cisco Users Group; cisco-nsp at puck.nether.net
> Subject: Re: [nsp] Overruns?
> 
> Shows the number of times that the receiver hardware was incapable of
> handing received data to a hardware buffer because the input rate
> exceeded the receiver's capability to handle the data. 
> 
> Check you interface speeds/duplex on both sides.
> Are you just getting overruns or is this acompanied by crcs or any other
> errors ?
> 
> http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1904.htm
> 
> 
> > What are overruns caused by?
> > 
> > I have my Pix 525 connected to our Cat 6509 on a Ethernet interface
> and
> > the 6509 is showing thousands of overruns.  Any ideas?  The same pix
> is
> > also not passing traffic on that DMZ.  Any ideas?
> > 
> > Thanks
> > 
> > Scott
> > 
> > 
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