[nsp] Catg 3550 "output buffer failures"

[Konstantin Barinov]

Hello,

Maybe anybody is able to explain "output buffer failures" on
Catalyst 3550? They increase as soon as traffic reaches ~80M.
100-200 per minute.

Thanks!


br
--
Konstantin Barinov
INFONET AS, Tallinn, Estonia



FastEthernet0/19 is up, line protocol is up (connected)
  Hardware is Fast Ethernet, address is 000b.4699.4b93 (bia 000b.4699.4b93)
  MTU 1516 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 211/255, rxload 222/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s
  input flow-control is off, output flow-control is off
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:08, output 00:00:01, output hang never
  Last clearing of "show interface" counters 00:06:17
  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 87085000 bits/sec, 23197 packets/sec
  30 second output rate 82827000 bits/sec, 23502 packets/sec
     8819547 packets input, 4152638391 bytes, 0 no buffer
     Received 7 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 7 multicast, 0 pause input
     0 input packets with dribble condition detected
     9006096 packets output, 4005769332 bytes, 976 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     976 output buffer failures, 0 output buffers swapped out