[c-nsp] Trouble with a NM-2CT1-CSU module

[Bruce Pinsky]

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james edwards wrote:
|>What does the output of "show controller t1" indicate?  Are there input or
|>output errors on the "show interface" output?
|
|
|
| cmcs-NMS#sho controllers t1 1/0 brief
| T1 1/0 is up.
|   Applique type is Channelized T1
|   Cablelength is long gain36 0db
|   No alarms detected.
|   alarm-trigger is not set
|   Framing is ESF, FDL is ansi, Line Code is B8ZS, Clock Source is Internal.
|   Data in current interval (73 seconds elapsed):
|      0 Line Code Violations, 0 Path Code Violations
|      0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
|      0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
|   Total Data (last 10 15 minute intervals):
|      1326 Line Code Violations, 0 Path Code Violations,
|      2 Slip Secs, 167 Fr Loss Secs, 4 Line Err Secs, 0 Degraded Mins,
|      1 Errored Secs, 0 Bursty Err Secs, 17 Severely Err Secs, 150 Unavail
| Secs
| cmcs-NMS#
|

If those numbers are increasing, then this circuit is getting clocking
errors IMHO.

Is the other side of the circuit clean?

|
| Serial1/0:0 is up, line protocol is down
|   Hardware is DSX1
|   Description: T-1 to RR colo
|   Internet address is 10.444.0.25/30
|   MTU 1500 bytes, BW 1344 Kbit, DLY 20000 usec,
|      reliability 229/255, txload 1/255, rxload 1/255
|   Encapsulation FRAME-RELAY IETF, loopback not set
|   Keepalive set (10 sec)
|   LMI enq sent  393, LMI stat recvd 0, LMI upd recvd 0, DTE LMI down
|   LMI enq recvd 0, LMI stat sent  0, LMI upd sent  0
|   LMI DLCI 1023  LMI type is CISCO  frame relay DTE
|   FR SVC disabled, LAPF state down
|   Broadcast queue 0/64, broadcasts sent/dropped 2/0, interface broadcasts 6
|   Last input never, output 00:00:02, output hang never
|   Last clearing of "show interface" counters 01:05:44
|   Input queue: 0/75/239/0 (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
|      240 input errors, 63 CRC, 42 frame, 0 overrun, 0 ignored, 0 abort
|      594 packets output, 7853 bytes, 0 underruns
|      0 output errors, 0 collisions, 127 interface resets
|      0 output buffer failures, 0 output buffers swapped out
|      4 carrier transitions
|   Timeslot(s) Used:1-24, Transmitter delay is 0 flags
|

The CRC and framing input errors are to be expected based on the T1
controller output.  Not surprising.

Note that you have received no valid LMI updates on this interface due to
the errors.

- --
=========
bep

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