[c-nsp] Hanging Fa0 on 1721

[Joe Loiacono]

Duplex/speed mismatch?




"Vincent De Keyzer" <vincent at dekeyzer.net> 
Sent by: cisco-nsp-bounces at puck.nether.net
08/09/2006 10:55 AM

To
<cisco-nsp at puck.nether.net>
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Subject
[c-nsp] Hanging Fa0 on 1721






Hello,

 

I had the following problem with a customer router (Internet access) : Fa0
was not sending packets out anymore (to customer firewall). Problem was
fixed by reloading the 1721.

 

Do you have any idea what can cause the output drops we were seeing ? What
should we check if it happens another time ?

 

Vincent

 

IXE005ro11#sh int fa 0

FastEthernet0 is up, line protocol is up

  Hardware is PQUICC_FEC, address is 000e.832a.f522 (bia 000e.832a.f522)

  Internet address is x.y.242.113/28

  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s, 100BaseTX/FX

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:04:42, output 02:10:53, output hang never

  Last clearing of "show interface" counters 01:02:45

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 4449
<------------------ here 

  Queueing strategy: fifo

  Output queue: 40/40 (size/max)

  30 second input rate 0 bits/sec, 0 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

     1855 packets input, 111300 bytes

     Received 1855 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog

     0 input packets with dribble condition detected

     0 packets output, 0 bytes, 0 underruns
<-------------------------------------- and here

     0 output errors, 0 collisions, 0 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier

     0 output buffer failures, 0 output buffers swapped out

IXE005ro11#

 

 

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