查看埠狀態如下，ｏｕｔｐｕｔ有大量ｅｒｒｏｒ而且上傳速度也變的很慢！求告知可能是什么原因引起的！
GigabitEthernet3/1/0 current state: UP
Line protocol current state: UP
Description: GigabitEthernet3/1/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is xxxxx Primary
IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: xxx
IPv6 Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: xxx
Media type is twisted pair, loopback not set, promiscuous mode not set
100Mb/s, Half-duplex, link type is autonegotiation
Output flow-control is disabled, input flow-control is disabled
Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0
Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0
Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0
Last clearing of counters: Never
Last 300 seconds input rate 1346116.75 bytes/sec, 10768928 bits/sec, 1384.65 packets/sec
Last 300 seconds output rate 185416.29 bytes/sec, 1483328 bits/sec, 996.35 packets/sec
Input: 820722568 packets, 909557616439 bytes, 0 no buffers
39396 broadcasts, 0 multicasts, 0 pauses
0 errors, 0 runts, 0 giants
0 crc, 0 align errors, 0 overruns
0 dribbles, 0 drops
Output:576235929 packets, 150231359169 bytes
312 broadcasts, 0 multicasts, 0 pauses
107488952 errors, 0 underruns, 21309687 collisions
86179265 deferred, 0 lost carriers
uj5u.com熱心網友回復：
出口商，看看，接光貓的網線，換一個根唄uj5u.com熱心網友回復：
collisions錯誤一般都是雙工導致的。看你display埠的配置，埠協商為半雙工了，改成強制全雙工應該就可以了。uj5u.com熱心網友回復：
樓上OK的！uj5u.com熱心網友回復：
試試強制全雙工看看，uj5u.com熱心網友回復：
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