网络故障排除实战技巧

Switch# show interface fa0/14FastEthernet0/14 is up, line protocol is up (connected)  Hardware is Fast Ethernet, address is 0014.1c40.b08e (bia 0014.1c40.b08e)  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)  Half-duplex, 100Mb/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 never  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 0 bits/sec, 0 packets/sec  5 minute output rate 2000 bits/sec, 3 packets/sec     96848 packets input, 8083322 bytes, 0 no buffer     Received 9293 broadcasts (0 multicast)     0 runts, 0 giants, 0 throttles     323210 input errors, 123123 CRC, 0 frame, 0 overrun, 0 ignored     0 watchdog, 133 multicast, 0 pause input     0 input packets with dribble condition detected     10061627 packets output, 866400040 bytes, 0 underruns     0 output errors, 0 collisions, 2 interface resets     0 babbles, 0 late collision, 2 deferred     132 lost carrier, 20 no carrier, 0 PAUSE output     0 output buffer failures, 0 output buffers swapped outSwitch#