Park, if you look at the output you can see that the last time you cleared
the counters on the interface was approximately 18 hours ago:
Last clearing of "show interface" counters 18:08:32
Since that time you have had:
8940 input errors, 1913 CRC, 0 frame, 6028 overrun, 0 ignored, 999 abort
3438 interface resets
This would indicate that there is a problem with the T1 line or the cabling
between the router(s) and their interface with the T1 whether it be through
a V.35 into a CSU, or a straight cable into the NIU or smartjack. I would
recommend calling the circuit into the carrier that provides it and asking
them to test the line. In my experience about 97% of the time it is a
carrier issue such as a bad cross connect in the CO. It is also possible,
although very unlikely, that the router interface itself has a problem but
you will probably find that this is a carrier issue and that it can be
repaired by them.
-----Original Message-----
From: park jeongwoo
To: [EMAIL PROTECTED]
Sent: 5/18/01 11:04 AM
Subject: point to point T1 troubleshooting [7:4987]
HI all
Have anyone troubleshooted PPP TI before?
it is leased line and ppp encapsulation.
Here is output of "sh int s2/0"
#sh int s2/0
Serial2/0 is up, line protocol is down
Hardware is M4T
Description: Leased Line to branch
Internet address is 10.10.14.86/30
MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, crc 16, loopback not set
Keepalive set (10 sec)
LCP Listen
Closed: IPCP, CDPCP
Last input never, output 00:00:03, output hang never
Last clearing of "show interface" counters 18:08:32
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 0/1/256 (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, 2368 giants, 0
throttles
8940 input errors, 1913 CRC, 0 frame, 6028
overrun, 0 ignored, 999 abort
13556 packets output, 189784 bytes, 0 underruns
0 output errors, 0 collisions, 3438 interface
resets
0 output buffer failures, 0 output buffers
swapped out
3672 carrier transitions DCD=up DSR=up
DTR=up RTS=up CTS=up
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