[nsp] deferred

[Hudson Delbert J Contr 61 CS/SCBN]

Victor,

	-	the document doesnt lead one to believe that full duplex
interfaces
		are not deferred packets anywhere. in fact, in the case of
what may
		a sync problem, full duplex may be the problem if you have
10mb half 
		set on other interfaces on the wire. is this a subnet
w/mixed duplex devices?
		
	-	deferred packets refer to the sending frames, not receiving
them
		XMIT increments this counter when the software is ready to
		send a frame but the interface hardware isnt.

	-	have you checked for broken NICs, or simply too many
stations on the shared medium.

~v/r
Del Hudson
61CS/SCBN - LAAFB NCC
Network Architecture & Engineering Group
delbert.hudson at losangeles.af.mil



-----Original Message-----
From: Victor Sudakov [mailto:sudakov at sibptus.tomsk.ru]
Sent: Thursday, November 20, 2003 8:20 AM
To: cisco-nsp at puck.nether.net
Subject: [nsp] deferred


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
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