急求帮助，神州数码2626路由器ppp连接问题

unixyeah

做个实验。\r\n两台2626串口通过一拖二的线缆连接，一台的用cr-2-v35fc 一台用cr-2-v35mt .死活都是serial down,协议也是down的。必须要做multilink？试着做了也不行。\r\n到底要怎么做。后板上有s1,s2,s3,s4指示灯一个都不亮。急啊\n\n[ 本帖最后由 unixyeah 于 2009-2-18 11:02 编辑 ]

ssffzz1

帖接口状态，确认一段是DTE另一端是DCE.

unixyeah

dte dce应该是不会搞错\r\nfc-接的定为dce 时钟64000\r\nmt-接的定为dte\r\n\r\n我想在就作最简单的hdlc 还是ppp也好\r\n都是down

ssffzz1

帖接口状态。\r\n\r\n这个不用太啰嗦吧。\r\n\r\n如果DTE和DCE正确，配置也没问题的话，没理由不UP的。

unixyeah

不好意思，这会别人在用。要不我就贴了，呵呵。

unixyeah

Router1_config# sh int s0/1\r\nSerial0/1 is down, line protocol is down\r\n Mode=Sync DCE Speed=64000\r\n  DTR=UP,DSR=DOWN,RTS=UP,CTS=DOWN,DCD=DOWN\r\n  MTU 1500 bytes, BW 64 kbit, DLY 2000 usec\r\n  Interface address is 11.1.1.2/24\r\n  Encapsulation prototol HDLC, link check interval is 10 sec\r\nOctets  Received0, Octets Sent 0\r\nFrames Received 0, Frames Sent 0, Link-check Frames Received0\r\nLink-check Frames Sent 0,   LoopBack times 0\r\nFrames Discarded 0, Unknown Protocols Frames Received 0, Sent failuile 0\r\n  Link-check Timeout 0, Queue Error 0, Link Error 0,\r\n  60 second input rate 0 bits/sec, 0 packets/sec!\r\n  60 second output rate 0 bits/sec, 0 packets/sec!\r\n    0 packets input, 0 bytes, 8 unused_rx, 0 no buffer\r\n    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort\r\n    0 packets output, 0 bytes, 8 unused_tx, 0 underruns\r\n  error:\r\n    0 clock, 0 grace\r\n  PowerQUICC SCC specific errors:\r\n    0 recv allocb mblk fail     0 recv no buffer\r\n    0 transmitter queue full    0 transmitter hwqueue_full\r\n\r\nRouter1_config# sh int s0/2\r\nSerial0/2 is down, line protocol is down\r\n Mode=Sync DCE Speed=64000\r\n  DTR=UP,DSR=DOWN,RTS=UP,CTS=DOWN,DCD=DOWN\r\n  MTU 1500 bytes, BW 64 kbit, DLY 2000 usec\r\n  Interface address is 11.1.2.2/24\r\n  Encapsulation prototol HDLC, link check interval is 10 sec\r\nOctets  Received0, Octets Sent 0\r\nFrames Received 0, Frames Sent 0, Link-check Frames Received0\r\nLink-check Frames Sent 0,   LoopBack times 0\r\nFrames Discarded 0, Unknown Protocols Frames Received 0, Sent failuile 0\r\n  Link-check Timeout 0, Queue Error 0, Link Error 0,\r\n  60 second input rate 0 bits/sec, 0 packets/sec!\r\n  60 second output rate 0 bits/sec, 0 packets/sec!\r\n    0 packets input, 0 bytes, 8 unused_rx, 0 no buffer\r\n    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort\r\n    0 packets output, 0 bytes, 8 unused_tx, 0 underruns\r\n  error:\r\n    0 clock, 0 grace\r\n  PowerQUICC SCC specific errors:\r\n    0 recv allocb mblk fail     0 recv no buffer\r\n    0 transmitter queue full    0 transmitter hwqueue_full\r\n\r\n\r\nRouter2# sh int s0/1\r\nSerial0/1 is down, line protocol is down\r\n Mode=Sync DTE\r\n  DTR=UP,DSR=DOWN,RTS=UP,CTS=DOWN,DCD=DOWN\r\n  MTU 1500 bytes, BW 64 kbit, DLY 2000 usec\r\n  Interface address is 11.1.1.1/24\r\n  Encapsulation prototol HDLC, link check interval is 10 sec\r\nOctets  Received0, Octets Sent 0\r\nFrames Received 0, Frames Sent 0, Link-check Frames Received0\r\nLink-check Frames Sent 0,   LoopBack times 0\r\nFrames Discarded 0, Unknown Protocols Frames Received 0, Sent failuile 0\r\n  Link-check Timeout 0, Queue Error 0, Link Error 0,\r\n  60 second input rate 0 bits/sec, 0 packets/sec!\r\n  60 second output rate 0 bits/sec, 0 packets/sec!\r\n    0 packets input, 0 bytes, 8 unused_rx, 0 no buffer\r\n    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort\r\n    0 packets output, 0 bytes, 8 unused_tx, 0 underruns\r\n  error:\r\n    0 clock, 0 grace\r\n  PowerQUICC SCC specific errors:\r\n    0 recv allocb mblk fail     0 recv no buffer\r\n    0 transmitter queue full    0 transmitter hwqueue_full\r\nRouter2# sh int s0/2\r\nSerial0/2 is down, line protocol is down\r\n Mode=Sync DTE\r\n  DTR=UP,DSR=DOWN,RTS=UP,CTS=DOWN,DCD=DOWN\r\n  MTU 1500 bytes, BW 64 kbit, DLY 2000 usec\r\n  Interface address is 11.1.2.1/24\r\n  Encapsulation prototol HDLC, link check interval is 10 sec\r\nOctets  Received0, Octets Sent 0\r\nFrames Received 0, Frames Sent 0, Link-check Frames Received0\r\nLink-check Frames Sent 0,   LoopBack times 0\r\nFrames Discarded 0, Unknown Protocols Frames Received 0, Sent failuile 0\r\n  Link-check Timeout 0, Queue Error 0, Link Error 0,\r\n  60 second input rate 0 bits/sec, 0 packets/sec!\r\n  60 second output rate 0 bits/sec, 0 packets/sec!\r\n    0 packets input, 0 bytes, 8 unused_rx, 0 no buffer\r\n    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort\r\n    0 packets output, 0 bytes, 8 unused_tx, 0 underruns\r\n  error:\r\n    0 clock, 0 grace\r\n  PowerQUICC SCC specific errors:\r\n    0 recv allocb mblk fail     0 recv no buffer\r\n    0 transmitter queue full    0 transmitter hwqueue_full

unixyeah

A s0/1   s0/2\r\n    |          |\r\nB s0/1   s0/2\r\n 判断不出来s0/1对s0/1还是s0/1对s0/2，但这应该不影响lserial up吧。而且我撤掉一根，还是down。\n\n[ 本帖最后由 unixyeah 于 2009-2-18 11:02 编辑 ]

ssffzz1

DTR=UP,DSR=DOWN,RTS=UP,CTS=DOWN,DCD=DOWN\r\n\r\n从这个地方可以看到物理信号都没有UP。\r\n1、要么是DTE和DCE电缆不对。\r\n2、要么是接口物理故障（一般不太可能）。\r\n\r\n因此认为你再确认电缆正确性比较好。

unixyeah

我这里有个疑问 dte dce怎么都是DTR=UP,DSR=DOWN,RTS=UP,CTS=DOWN,DCD=DOWN

ssffzz1

CISOCO和H3C的都一个忽略DSR（好像是）信号的命令，你可以试试。不过感觉希望不大。