我是新手，弱弱的问下，通过show端口，怎么看出通信质量如何，得看哪几个关键点。------ 端口信息如下 --------
Serial3/0 is up, line protocol is up
Hardware is QUICC Serial
Description: connect to XXX
Internet address is 192.168.48.1/30
MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:04, 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: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/4/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 15000 bits/sec, 13 packets/sec
5 minute output rate 10000 bits/sec, 9 packets/sec
43715445 packets input, 3085748481 bytes, 0 no buffer
Received 452579 broadcasts, 8003 runts, 247 giants, 0 throttles
2615926 input errors, 592670 CRC, 698267 frame, 0 overrun, 0 ignored, 1324989 abort
27582505 packets output, 3142339844 bytes, 0 underruns
0 output errors, 0 collisions, 182 interface resets
0 output buffer failures, 0 output buffers swapped out
6 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
------- end -------
“reliability 255/255”应该表明可靠性是100%吧，那“2615926 input errors”怎么理解呢，“8003 runts, 247 giants, 0 throttles”是表明什么呀，不懂的太多了，学习中，盼指点。
顶上来，期待中...Received 452579 broadcasts, 8003 runts, 247 giants, 0 throttles2615926 input errors, 592670 CRC, 698267 frame, 0 overrun, 0 ignored, 1324989 abort
质量不咋地。
2615926 input errors, 592670 CRC, 698267 frame是不咋样！
谢谢楼上的回复。“2615926 input errors”是指接收错误的字节数吧，那
“592670 CRC”和“698267 frame”呢，是指校验有错的字节和成帧有错的帧数吗？
还有，“8003 runts, 247 giants, 0 throttles”是表明什么呀。
不要嫌偶烦，有点网络知识，但头回接触实物，想多请教点。
观察到是累计数值.需要观察几次,若发生变化,才认为有问题.runts是表示小于64的包，giants是大于1518的包观察到是累计数值.需要观察几次,若发生变化,才认为有问题.有办法清0吗？
clear counters interface Serial3/0load-interval 30clear counters interface Serial3/0谢谢啦。
load-interval 30这是做什么用的命令啊？
线路质量看reliability 255/255, txload 1/255, rxload 1/255上面的应该是网络质量，不知道这样理解对不对。