[nsp] 7100 and small packets

From: Jean-Christophe Varaillon (jcv@vbc.net)
Date: Wed Aug 01 2001 - 09:44:14 EDT


Hi,

On a 100 M Full-duplex interface of a Cisco 7100, I receive some very
small packet due to Games application and/or VOIP traffic.

Because of this I have an abnormal CPU utilization rate.
Therefore, I have some packet loss when I run somes ping.

kg6.uk0#sho int fa0/0
FastEthernet0/0 is up, line protocol is up
  Hardware is DEC21140A, address is 0003.3184.8800 (bia 0003.3184.8800)
  Internet address is 192.168.0.21/25
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 11/255, rxload 13/255
  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 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 22:17:20
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 8/75, 1478 drops
  5 minute input rate 5453000 bits/sec, 1975 packets/sec
  5 minute output rate 4342000 bits/sec, 1983 packets/sec
     95383572 packets input, 1399376380 bytes
     Received 162215 broadcasts, 0 runts, 294 giants, 1478 throttles
     208760 input errors, 208760 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast
     103898 input packets with dribble condition detected
     95244094 packets output, 1975945187 bytes, 0 underruns
     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

I would like to know what alternative I have to solve this trouble.

Regards,
Jean-Christophe.



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