2921 Router T1 Card CD light stuck green with no cable plugged in to port

[NPT_2]

I have a new 2921 router with 2 VWIC3-2MFT-T1/E1 Cards in EWIC slots 0 and 1 (Configured for T1).  The strange thing is that ports 0 and 1 on Slot 0 and port 0 on the card in Slot1 show only the amber AL light (as expected), however port 1 on the card in Slot 1 shows both the amber AL light but also a green light on the CD/LP light.  I am just setting this router up and don't have anything plugged into any of the T1 ports and a show controller T1 shows the port down with loss of signal as expected (see below). 

The strange thing is that if I do a shut no shut on the T1 controller the green light goes out.  Do you think this is aesthetic or an actual problem with the T1 card or port itself? 

I just upgraded to IOS Version c2900-universalk9-mz.SPA.151-4.M6 but am not sure if this showed up immediately after this upgrade or not. 

Has anyone else run into this? 

Show controller T1

T1 0/1/1 is down.

  Applique type is Channelized T1

  Cablelength is long 0db

  Transmitter is sending remote alarm.

  Receiver has loss of signal.

  alarm-trigger is not set

  Soaking time: 3, Clearance time: 10

  AIS State:Clear  LOS State:Failure LOF State:Failure

  Version info FPGA Rev: 08121917, FPGA Type: PRK4

  Framing is ESF, Line Code is B8ZS, Clock Source is Line.

  CRC Threshold is 320. Reported from firmware  is 320.

  Data in current interval (849 seconds elapsed):

     6 Line Code Violations, 0 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 849 Unavail Secs T1 0/1/1 is down.
  Applique type is Channelized T1
  Cablelength is long 0db
  Transmitter is sending remote alarm.
  Receiver has loss of signal.
  alarm-trigger is not set
  Soaking time: 3, Clearance time: 10
  AIS State:Clear  LOS State:Failure LOF State:Failure
  Version info FPGA Rev: 08121917, FPGA Type: PRK4
  Framing is ESF, Line Code is B8ZS, Clock Source is Line.
  CRC Threshold is 320. Reported from firmware  is 320.
  Data in current interval (849 seconds elapsed):
     6 Line Code Violations, 0 Path Code Violations
     0 Slip Secs, 0 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins
     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 849 Unavail Secs

[Rejohn Cuares · Accepted solution]

I dont worry to much on that. What would be interesting to know is what if you had a T1 loopback cable connected to those cards.

[NPT_2]

I plugged in a T1 loopback cable and it linked right in my alarm light went out and the cd/lp light stayed green and when I pulled the cable the alarm came back on and the green cd/lp light went back out.  Here is the show controllers output after plugging my loopback cable in.  Sounds like a bug to me.  I think I'll avoid that port except in an emergency just to be on the safe side. 

T1 0/1/1 is up.

  Applique type is Channelized T1

  Cablelength is long 0db

  No alarms detected.

  alarm-trigger is not set

  Soaking time: 3, Clearance time: 10

  AIS State:Clear  LOS State:Clear  LOF State:Clear

  Version info FPGA Rev: 08121917, FPGA Type: PRK4

  Framing is ESF, Line Code is B8ZS, Clock Source is Line.

  CRC Threshold is 320. Reported from firmware  is 320.

  Data in current interval (444 seconds elapsed):

     5359 Line Code Violations, 5 Path Code Violations

     0 Slip Secs, 1 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 425 Unavail Secs

  Total Data (last 3 15 minute intervals):

     10664 Line Code Violations, 12 Path Code Violations,

     0 Slip Secs, 3 Fr Loss Secs, 5 Line Err Secs, 0 Degraded Mins,

     1 Errored Secs, 1 Bursty Err Secs, 0 Severely Err Secs, 2674 Unavail Secs T1 0/1/1 is up.
  Applique type is Channelized T1
  Cablelength is long 0db
  No alarms detected.
  alarm-trigger is not set
  Soaking time: 3, Clearance time: 10
  AIS State:Clear  LOS State:Clear  LOF State:Clear
  Version info FPGA Rev: 08121917, FPGA Type: PRK4
  Framing is ESF, Line Code is B8ZS, Clock Source is Line.
  CRC Threshold is 320. Reported from firmware  is 320.
  Data in current interval (444 seconds elapsed):
     5359 Line Code Violations, 5 Path Code Violations
     0 Slip Secs, 1 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins
     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 425 Unavail Secs
  Total Data (last 3 15 minute intervals):
     10664 Line Code Violations, 12 Path Code Violations,
     0 Slip Secs, 3 Fr Loss Secs, 5 Line Err Secs, 0 Degraded Mins,
     1 Errored Secs, 1 Bursty Err Secs, 0 Severely Err Secs, 2674 Unavail Secs

[Rejohn Cuares · Accepted solution]

That means that your T1 cards are working as expected.

[NPT_2]

Thanks for the advice.  I just found it strange that the green light comes on every time I reboot the switch.