Connect Router to Router via DCE/DTE cable

jabb000

OK I am trying to hook 2 2501 Routers together with a DCE/DTE cable and I can't seems to get the Protocol to change to "UP" Anyone see anything wrong?

Show Interface Serial0 on RouterA

RouterA#show interface serial0
Serial0 is up, line protocol is down
Hardware is HD64570
Internet address is 192.168.22.5/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input never, output 00:00:09, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/2/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
17 packets output, 664 bytes, 0 underruns
0 output errors, 0 collisions, 20 interface resets
0 output buffer failures, 0 output buffers swapped out
19 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
RouterA#

Show IP Interface Brief

RouterA#show ip interface brief
Interface IP-Address OK? Method Status Protocol
Ethernet0 192.168.2.50 YES NVRAM up up
Serial0 192.168.22.5 YES manual up down
Serial1 unassigned YES unset administratively down down
RouterA#

I can't ping it or anything.

Thanks!

yukky

did you set the clock rate on the DCE side?

stevcha

jabb000 wrote:

OK I am trying to hook 2 2501 Routers together with a DCE/DTE cable and I can't seems to get the Protocol to change to "UP" Anyone see anything wrong?

Show Interface Serial0 on RouterA

RouterA#show interface serial0
Serial0 is up, line protocol is down
Hardware is HD64570
Internet address is 192.168.22.5/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input never, output 00:00:09, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/2/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
17 packets output, 664 bytes, 0 underruns
0 output errors, 0 collisions, 20 interface resets
0 output buffer failures, 0 output buffers swapped out
19 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
RouterA#

Show IP Interface Brief

RouterA#show ip interface brief
Interface IP-Address OK? Method Status Protocol
Ethernet0 192.168.2.50 YES NVRAM up up
Serial0 192.168.22.5 YES manual up down
Serial1 unassigned YES unset administratively down down
RouterA#

I can't ping it or anything.

Thanks!

Since there's no circuit one of your routers must act as the DCE and provide clocking for the DTE side.

networker050184

Use the show controllers command to determine which side of the link is the DTE or DCE.

jabb000

Hi - I set the clockrate to 65000 on the DCE

Thanks!