cisco4507一端口出現input errors,CRC是怎麼回事?
請教一下大家:
我們的核心交換机是一CISCO 4507, Gi4/5,Gi4/6 兩個端口分別接至下層CISCO3550的Gi0/1,Gi0/2 兩個端口.
這几天突然發現一种狀況, 即4507上的GI4/6端口,
core-4507#show interfaces gigabitEthernet 4/6
GigabitEthernet4/6 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is 0016.9de2.a311 (bia 0016.9de2.a311)
Description: Plant3
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 249/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX
input flow-control is on, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:11, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 4463
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 395000 bits/sec, 202 packets/sec
5 minute output rate 2602000 bits/sec, 573 packets/sec
131036809 packets input, 27748975371 bytes, 0 no buffer
Received 450401 broadcasts (450107 multicast)
2267 runts, 0 giants, 0 throttles
4046497 input errors, 4000092 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with dribble condition detected
445128183 packets output, 253869975737 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 output buffer failures, 0 output buffers swapped out.
但CISCO3550的0/2端口卻無報錯:
3550-3#show inter gigabitEthernet 0/2
GigabitEthernet0/2 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0016.4795.0b02 (bia 0016.4795.0b02)
Description: Link to core-4507
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX
input flow-control is off, output flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:03, output 00:00:17, 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 2580000 bits/sec, 573 packets/sec
5 minute output rate 492000 bits/sec, 216 packets/sec
339683391 packets input, 3287050732 bytes, 0 no buffer
Received 14707109 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 1794489 multicast, 0 pause input
0 input packets with dribble condition detected
129799018 packets output, 4204359905 bytes, 0 underruns
0 output errors, 0 collisions, 3 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.
出現這种問題, 這一般是什么狀況? 肯請大家幫幫忙了...
[ 本帖最后由 probor 于 2008-4-22 20:19 编辑 ]
