04-01-2012 10:11 PM - edited 03-04-2019 03:52 PM
Dear all,
I have a leased line between 2 site A & B. Both i already pre-configure but when i test, i can't ping between the 2 interface.
What could be the problem. I saw that the B interfece is (looped), what does it mean? Both serial interface i already connected to the modem/NTU
Site A (klcc)
Serial0/1/0 is up, line protocol is down
Hardware is GT96K Serial
Description: Connect to OU Router
Internet address is 172.16.3.1/30
MTU 1500 bytes, BW 512 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input never, output 00:00:03, 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: fifo
Output queue: 0/40 (size/max)
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
799 packets output, 19176 bytes, 0 underruns
0 output errors, 0 collisions, 1727 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
53 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Site B (OU)
Serial0/0/0 is up, line protocol is up (looped)
Hardware is WIC MBRD Serial
Description: Connection to KLCC Router
Internet address is 172.16.3.2/30
MTU 1500 bytes, BW 512 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, 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: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
15 packets input, 1664 bytes, 0 no buffer
Received 15 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
15 packets output, 1664 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Solved! Go to Solution.
04-01-2012 11:54 PM
A loop is generated towards site B.It is not from your Site A or Site B modem, because both end serial is up.Co-ordinate with your service provider regarding the loop.I think a loop is generated from service provider end only .Please reply after doing the troubleshooting.
04-01-2012 11:38 PM
guys,
help me out here. any idea
04-01-2012 11:54 PM
A loop is generated towards site B.It is not from your Site A or Site B modem, because both end serial is up.Co-ordinate with your service provider regarding the loop.I think a loop is generated from service provider end only .Please reply after doing the troubleshooting.
04-02-2012 12:41 AM
Hi Soumik,
i get the isp to com to check. i'll reply later
04-04-2012 05:40 AM
it seem that the isp already rectified the problem is at their end. tq so much
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