[c-nsp] Deferred packets on 2950 10/full interface

[jexum at harding.edu]

I have seen a 2950G-48 port connected to a Packeteer 4500, both set to 100 Full Duplex not work duplexity out correctly.  I have seen the same happen between an Enterasys E-7 blade and a different 2950.

In both cases an update on the other device "fixed" the Cisco switch.

John Exum
Network Manager
Harding University

----- Original Message -----
From: Clinton Work <clinton at scripty.com>
Date: Friday, January 14, 2005 4:25 pm
Subject: [c-nsp] Deferred packets on 2950 10/full interface

> 
> I'm seeing 3716 deferred frames on a 10/full interface. I suspect 
> a 
> duplex mismatch even though the Telco assures me that their 
> interface is 
> 10/full as well. Anybody seen this problem on another 2950 switch?
> 
> 
> Router#show int fa0/1
> FastEthernet0/1 is up, line protocol is up (connected)
>   Hardware is Fast Ethernet, address is 000e.38a0.3901 (bia 
> 000e.38a0.3901)   Description:
>   MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
>      reliability 255/255, txload 1/255, rxload 1/255
>   Encapsulation ARPA, loopback not set
>   Keepalive set (10 sec)
>   Full-duplex, 10Mb/s
>   input flow-control is off, output flow-control is off
>   ARP type: ARPA, ARP Timeout 04:00:00
>   Last input 00:00:00, output 00:00:05, output hang never
>   Last clearing of "show interface" counters 6w0d
>   Input queue: 0/75/0/0 (size/max/drops/flushes); Total output 
> drops: 0
>   Queueing strategy: fifo
>   Output queue :0/40 (size/max)
>   30 second input rate 0 bits/sec, 0 packets/sec
>   30 second ouxtput rate 0 bits/sec, 0 packets/sec
>      2979697 packets input, 477032533 bytes, 0 no buffer
>      Received 2612753 broadcasts, 241 runts, 0 giants, 0 throttles
>      316 input errors, 0 CRC, 75 frame, 0 overrun, 0 ignored
>      0 watchdog, 2612346 multicast, 0 pause input
>      0 input packets with dribble condition detected
>      1110744 packets output, 296966944 bytes, 0 underruns
>      0 output errors, 0 collisions, 0 interface resets
>      0 babbles, 0 late collision, 3716 deferred
>      0 lost carrier, 0 no carrier, 0 PAUSE output
>      0 output buffer failures, 0 output buffers swapped out
> 
> IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(13)EA1, 
> RELEASE 
> SOFTWARE (fc1)
> Copyright (c) 1986-2003 by cisco Systems, Inc.
> Compiled Tue 04-Mar-03 02:14 by yenanh
> Image text-base: 0x80010000, data-base: 0x805A8000
> Model number: WS-C2950-12
> 
> 
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