l测试命令:
[JXZJ]interfaceSerial 1/0
[JXZJ -Serial2/0]fe1 loopback local “本地打环”测试命令
%Jan 1 00:12:41:513 2013 H3CIFNET/3/LINK_UPDOWN: Serial2/0 link status is DOWN.
%Jan 1 00:12:42:294 2013 H3CIFNET/3/LINK_UPDOWN: Serial2/0 link status is UP.
过一段时间查看收发包
[JXZJ -Serial2/0]dis int se2/0
Serial2/0 current state: UP
Line protocol current state: DOWN
Description: Serial2/0 Interface
The Maximum Transmit Unit is 1500, Holdtimer is 10(sec)
Physical layer is E1-F, baudrate is1984000 bps
fe1 timeslot-list 1-31
Internet protocol processing : disabled
Link layer protocol is PPP, loopback isdetected
LCP closed
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: 00:12:13 Tue01/01/2013
Last 300 seconds input rate 0.00bytes/sec, 0 bits/sec, 0.00 packets/sec
Last 300 seconds output rate 0.00bytes/sec, 0 bits/sec, 0.00 packets/sec
Input: 36 packets, 468 bytes “测试结果input”数据
0 broadcasts, 0 multicasts
0 errors, 0 runts, 0 giants
0 CRC, 0 align errors, 0 overruns
0 dribbles, 0 aborts, 0 no buffers
0 frame errors
Output:36 packets, 468 bytes “测试结果onput”数据
0 errors, 0 underruns, 0 collisions
0 deferred