You can view the counters for a port on a Cisco switch using the
show interfaces command. E.g., if I want to check on whether
cyclic redundancy check (CRC) errors have been occurring on port fa0/16,
I can issue the command shown below:
Huron>show interfaces fa0/16
FastEthernet0/16 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0009.e897.d290 (bia 0009.e897.d290)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 19/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Mb/s, media type is 100BaseTX
input flow-control is unsupported output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:00, output hang never
Last clearing of "show interface" counters 2d17h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 24000 bits/sec, 40 packets/sec
5 minute output rate 756000 bits/sec, 64 packets/sec
46168 packets input, 4608074 bytes, 0 no buffer
Received 1250 broadcasts (1161 multicast)
0 runts, 0 giants, 0 throttles
121 input errors, 16 CRC, 105 frame, 0 overrun, 0 ignored
0 watchdog, 1161 multicast, 0 pause input
0 input packets with dribble condition detected
255151 packets output, 119141892 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 PAUSE output
0 output buffer failures, 0 output buffers swapped out
Huron>[ More Info ]
