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ignored count problem !

Posted by: wjdwodnd0802@sicc.co.kr

Hi,guys,

I have a switch one of whose interface shows this:

FastEthernet0/14 is up, line protocol is up (connected)

Hardware is Fast Ethernet, address is 1011.1134.30ce (bia 1011.1134.30ce)

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, media type is 100BaseFX

input flow-control is unsupported output flow-control is unsupported

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

Last input 00:00:00, output 00:00:04, output hang never

Last clearing of "show interface" counters never

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 134000 bits/sec, 52 packets/sec

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

805589598 packets input, 992002446 bytes, 52309736 no buffer

Received 599136096 broadcasts (0 multicast)

1338 runts, 0 giants, 0 throttles

1338 input errors, 0 CRC, 0 frame, 0 overrun, 52309736 ignored

0 watchdog, 88848603 multicast, 0 pause input

0 input packets with dribble condition detected

1612338 packets output, 186867143 bytes, 0 underruns

0 output errors, 0 collisions, 2 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier, 0 PAUSE output

0 output buffer failures, 0 output buffers swapped out

There is a "52309736 no buffer" in above output. What's its impact to the switch? Sometimes I ping this swith, the icmp delay went to 500-600 ms. Is it buffer insufficient problem that causes this problem? How to solve it? Anyone help.

Thanks.

1 REPLY

Re: ignored count problem !

"No buffer" count is the number of received packets discarded because there was no buffer space. Most likely it is caused by broadcast storm. 599136096/805589598=74% recieved packet is broadcast packet. Please verify if those broadcast packet is valid.

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