CISCO路由器问题解决方法( 二 ) _云知道

Router#conf t
Router(config)#interface serial 0
Router(config-if)#encapsulation ppp
Router(config-if)#^Z
Router#
c.若是使用Newbridge的26XX,27XX的DTU设备,它不发送CD信号,请在路由器上设置:
Router#configure terminal
Router(config)#int serial 0
Router(config-if)#ignored-dcd
Router(config-if)#^Z
Router#
d.MODEM之间没通,即专线没通.
解决办法:作测试环路.请电信局帮助确定具体出现问题是哪一段线路.若作环路成功,line protocol会变成up(looped).
若Serial is up,但line protocol is up(looped).
用show running-config看看端口是否作了loopback配置,若有删调它.
MODEM是否作了环路测试.
专线是否作了环路测试.
若Serial is admsinstratively down,line protocol is down.
Router#conf t
Router(config)#interface serial 0
Router(config-if)#no shutdown
Router(config-if)#^Z
Router#
///
- - //
(@ @)
┏━━━━━━━━━oOOo-(_)-oOOo━┓
┃网海茫茫，熟悉你是我的福份；┃
┃网语缠绵，那是我们注定的缘份。┃
无语亦无憾￠[672344] 2001-05-18 11:36:54回复
举个例子。
Ethernet0 is up, line protocol is up
Hardware address is 00-e0-fc-01-55-7a
Auto-Negotiation is enabled, Full-duplex, 100Mb/s
Description: Quidway Router, ethernet interface
IP Sending Frames" Format is Ethernet_II
the Maximum Transmission Unit is 1500
5 minutes input rate 17159.19 bytes/sec, 107.22 packets
5 minutes output rate 127072.62 bytes/sec, 119.23 packe
Input queue is0/1000/0 (size/max/drops)
Queueing strategy: FIFO
Output Queue :(size/max/drops)
0/75/0
16209475 packets input,4196601903 bytes, 0 no buffers
17807645 packets output, 2567378834 bytes, 0 no buffers
0 input errors, 0 CRC, 0 frame errors
0 overrunners, 0 aborted sequences, 0 input no buffers
Serial0 is up, line protocol is up
physical layer is synchronous
interface is DTE, clock is DTECLK1, cable type is V35
Encapsulation HDLC, keepalive set (10 sec)
Input keepalive packages:32775, Output keepalive packag
5 minutes input rate 125894.03 bytes/sec, 119.36 packet
5 minutes output rate 12833.18 bytes/sec, 103.47 packet
Input queue is0/1000/0 (size/max/drops)
Queueing strategy: FIFO
Output Queue :(size/max/drops)
0/75/0
17833759 packets input,2392930972 bytes, 0 no buffers
15566425 packets output, 3631801153 bytes, 0 no buffers
4012152 input errors, 2497605 CRC, 91428 frame errors
0 overrunners, 1423119 aborted sequences, 0 input no bu
DCD=UP DTR=UP DSR=UP RTS=UPCTS=UP
Serial1 is down, line protocol is down
physical layer is synchronous, baudrate is 64000 bps, n
Encapsulation is PPP
LCP initial, IPCP initial, IPXCP initial, CCP initia
5 minutes input rate 0.00 bytes/sec, 0.00 packets/sec
5 minutes output rate 0.00 bytes/sec, 0.00 packets/sec
Input queue is0/1000/0 (size/max/drops)
Queueing strategy: FIFO
Output Queue :(size/max/drops)
0/75/0
0 packets input,0 bytes, 0 no buffers
0 packets output, 0 bytes, 0 no buffers
0 input errors, 0 CRC, 0 frame errors
0 overrunners, 0 aborted sequences, 0 input no buffers
DCD=UPDTR=DOWN DSR=UPRTS=DOWNCTS=UP

CISCO路由器问题解决方法( 二 )

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