[nsp] deferred

[Victor Sudakov]

Anthony D Cennami wrote:
> This is a known bug in 2950 IOS 12.1(13); remedies include removing the 
> hard 'duplex full' configuration or migrating to a new IOS.  Please see 
> Cisco BugID: CSCea56745

Thanks a lot. This must be the cause of the problem, the description
of the bug fits perfectly.  However, migrating seems difficult. This
IOS supports "class-map" and "policy-map" and I am not sure if
ftp://ftp.cisco.com/pub/lan/catalyst/2950/c2950-i6q4l2-tar.121-12c.EA1.tar
can do that.

> 
> Regards,
> 
> Anthony Cennami
> 
> 
> Victor Sudakov wrote:
> 
> >Colleagues,
> >
> >There is a WS-C2950T-24 with IOS C2950-I6Q4L2-M, Version 12.1(13)EA1
> >One of its ports is attached to a 10 Mbit Allied Telesyn optical
> >transceiver, the port is configured for full duplex, speed 10.
> >
> >The problem is that the packet loss in this link is up to 20%. There
> >are 0 input or output errors in "sh interface". The only suspicious
> >counter is "deferred" which is rapidly growing.
> >
> >What could be the reason ?
> >
> >I also do not understand how the deferred counter could be growing on a 
> >full
> >duplex link. According to 
> >http://www.cisco.com/warp/public/63/eth_collisions.html#topic2
> >it should not happen, if I correctly understand the meaning of
> >"deferred".
> >
> >Thanks in advance for any input.
> >
> > 
> >
> 

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN