Mailing List Archive: Cisco: NSP

PA-MC-T3 Error

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peder at networkoblivion

Jul 1, 2008, 1:37 PM

Post #1 of 2 (216 views)
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PA-MC-T3 Error

I am getting the following on a new cT3 from a provider into a PA-MC-T3.
I think it indicates that there is an issue on their end, but they say
I have a config issue. Can anybody confirm or deny if this points to an
issue on my end, or if it is their end? I have other DS3's into other
equipment and there really isn't much to set, so I think it is their
issue. When they do a loopback to me, I see it come up.

7204VXR#sh contr t3 3/0
T3 3/0 is down. Hardware is CT3 single wide port adapter
CT3 H/W Version : 1.0.1, CT3 ROM Version : 1.1, CT3 F/W Version : 2.4.3
FREEDM version: 1, reset 0 resurrect 0
Applique type is Channelized T3
Description: Time Warner
Transmitter is sending remote alarm.
Receiver is getting AIS.
Framing is M23, Line Code is B3ZS, Clock Source is Line
Rx-error throttling on T1's ENABLED
Rx throttle total 0, equipment customer loopback
Data in current interval (205 seconds elapsed):
0 Line Code Violations, 0 P-bit Coding Violation
0 C-bit Coding Violation, 0 P-bit Err Secs
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs
205 Unavailable Secs, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs

SHOW RUN:
controller T3 3/0
framing m23
clock source line
t1 1 channel-group 0 timeslots 1-24
t1 2 channel-group 0 timeslots 1-24
t1 3 channel-group 0 timeslots 1-24
t1 4 channel-group 0 timeslots 1-24
t1 5 channel-group 0 timeslots 1-24
t1 6 channel-group 0 timeslots 1-24
t1 7 channel-group 0 timeslots 1-24
t1 8 channel-group 0 timeslots 1-24
t1 9 channel-group 0 timeslots 1-24
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jay at west

Jul 1, 2008, 9:19 PM

Post #2 of 2 (192 views)
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Re: PA-MC-T3 Error [In reply to]

Peder @ NetworkOblivion wrote:
> I am getting the following on a new cT3 from a provider into a PA-MC-T3.
> I think it indicates that there is an issue on their end, but they say
> I have a config issue. Can anybody confirm or deny if this points to an
> issue on my end, or if it is their end? I have other DS3's into other
> equipment and there really isn't much to set, so I think it is their
> issue. When they do a loopback to me, I see it come up.

Does the other side come up with a hard loop (co-ax jumper) from you?

> 7204VXR#sh contr t3 3/0

> Transmitter is sending remote alarm.

You are sending to the other end an indication that you are receiving an
alarm from the other side.

> Receiver is getting AIS.

The other end is sending you a signal that it is seeing all 1 bits from
you, unframed.

> Framing is M23, Line Code is B3ZS, Clock Source is Line

Make sure that the other side is set similarly, B3ZS and M23 (some
equipment may have this as M13).

Make sure that neither side has the TX and RX co-ax cables swapped.

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay [at] impulse
Impulse Internet Service - http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV
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