mini鵝的天地

查看線路的品質狀況

使用sh interface指令來看封包的錯誤統計數字:

#sh interface gi0/2
GigabitEthernet0/2 is up, line protocol is up (connected)
.
.
Last clearing of "show interface" counters never
.
678641 input errors, 30447 CRC,
.
.

共有678641個輸入的錯誤, 30447個CRC錯誤!

※統計數字是累積性的! 

使用clear counters指令將這個界面的封包錯誤統計數字清除重來!

#clear counters gi0/2
Clear "show interface" counters on this interface [confirm]

#sh interface gi0/2
GigabitEthernet0/2 is up, line protocol is up (connected)
.
.
Last clearing of "show interface" counters 00:00:10
.
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored