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BTSU

@rr.com

1841 service-module T1 timeslots 1-12

Why would the command service-module T1 timeslots 1-12 on an 1841 interfere with the frame relay 768 Kbps circuit from coming up? Everything seems to work fine when I take out the command.

nosx

join:2004-12-27
00000
kudos:5

3 edits

Take the command out, and run this:

R4#show service-module serial 0/1
Module type is T1/fractional
    Hardware revision is 0.96, Software revision is 20050811-0.3,
    Image checksum is 0x80ACD1B3, Protocol revision is 0.1 
Transmitter is sending remote alarm.
Receiver has loss of frame, AIS alarm, 
Framing is ESF, Line Code is B8ZS, Current clock source is line, 
Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec.
Last module self-test (done at startup): Passed
Last clearing of alarm counters 2d10h
    loss of signal        :    0, 
    loss of frame         :    1, current duration 2d10h
    AIS alarm             :    1, current duration 2d10h
    Remote alarm          :    1, last occurred 2d10h
    Module access errors  :    0, 
Total Data (last 96 15 minute intervals):
    162 Line Code Violations, 0 Path Code Violations
    0 Slip Secs, 86400 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins
    0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 86400 Unavail Secs
Data in current interval (290 seconds elapsed):
    0 Line Code Violations, 0 Path Code Violations
    0 Slip Secs, 290 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
    0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 290 Unavail Secs
 
actual command might be diff on an 1841, it might be show controller or something.

"Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec."

That line above, if the T1 is up/up and pinging with all 24 timeslots in use (1-24) then its provisioned as a full T1 not a frac. If you ordered a fractional T1 and they gave you a full T1, call your telco to fix it (because ur getting billed for twice as much bandwidth as you ordered)

If there is a timeslot mismatch between the two devices on a physical T1 (your WIC/DSU set for 1-12 and the telco DXC set to 1-24) you will usually increment constant abort errors and be up/down on your interface. (But tests to ping a loop on the circuit will work fine).

Also please ensure that LMI is enabled on the device.

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