网络故障排除实战技巧
http://tech.ddvip.com 2007年06月24日 社区交流 收藏本文
内容摘要：我们曾经介绍过一篇关于如何选择网络故障排除方法的文章，介绍了三种网络故障排除方法。这里我们又重拾话题，通过具体实例助您排除网络故障。
通过查看这个输出，我们可以发现FastEthernet0/11端口没有工作。由于这属于第一层故障，所以让用户顺着PC的网卡上的网线找到交换机端口。
方法2：如果不是这个问题怎么办？如果用户使用的是14号端口又该怎么办？既然有连接，说明网是通的。下一步应该怎么办？在交换机上使用show interface fastethernet 0/14 命令。显示如表B所列。
列表B
Switch# show interface fa0/14
FastEthernet0/14 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 out
Switch#
责编：豆豆技术应用
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