思科交换机端口High input error rate
级联交换机端口报警，端口信息如下 ，请问大神TenGigabitEthernet5/0/5 is up, line protocol is up (connected)
Hardware is Ten Gigabit Ethernet, address is 748f.c243.fe1c (bia 748f.c243.fe1c)
MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Gb/s, link type is auto, media type is SFP-10GBase-SR
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 3w5d
Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 3472000 bits/sec, 2907 packets/sec
5 minute output rate 15194000 bits/sec, 3959 packets/sec
2310296365 packets input, 486607885709 bytes, 0 no buffer
Received 24346490 broadcasts (13443878 multicasts)
0 runts, 0 giants, 0 throttles
893528 input errors, 818755 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 13443878 multicast, 0 pause input
0 input packets with dribble condition detected
5409786788 packets output, 2387812400077 bytes, 0 underruns
Output 539693192 broadcasts (0 multicasts)
0 output errors, 0 collisions, 2 interface resets
0 unknown protocol drops
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 大概是物理层坏了，换线换SFP试试 是光模块和光纤类型不匹配吧，单模光纤用了多模模块
error比较多，一般是speed或者双工模式不匹配
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