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Jaime CamposFlag for United States of America

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Adtran Router Error - Physical Interface and Layer 2 Protocols

Hello ,

I have a PtP T1 Circuit that has been working for some time now between two sites. There has been no changes or additions to this PtP from my end. The circuit went down and I need help trying to figure out why and find a resolution.

Site #1 Adtran 3530, t1/1 - ppp

Physical Interfaces
Error: t1 1/1 is administratively up, but in alarm ( Yellow). The far end device is transmitting a Yellow Alarm, which indicates that it is currently in Red Alarm. By receiving a Yellow Alarm, it is evident that the path between the far end device's transmitter and this device's receiver is good. However, the path between this device's transmitter and the far end device's receiver is suspect. This can result from: 1. A bad receiver on the far end device; 2. A bad circuit (or bad cables) between the devices; or, 3. A bad transmitter on this device.
 
Layer 2 Protocols
Error: ppp 1 is administratively up, but the link is down. Make sure the interface this PPP is connected to, t1 1/1, is administratively up. If not, debug t1 1/1 before continuing.
 
Site #2 Adtran 5305

Physical Interfaces
Error: t1 1/5 is administratively up, but in alarm ( TxYellow, Red). The interface is unable to detect a valid T1 framing pattern. Verify that the interface is not in either LOS or Blue Alarm. If LOS is present, it must be fixed prior to troubleshooting any other active alarm. If LOS is not present, but Blue Alarm is, it must be fixed prior to troubleshooting Red Alarm. If LOS and Blue Alarm are not present, verify that your configuration matches the framing specified on the device at the other end of the circuit. This should be either Extended Super Frame (ESF) or D4 (also known as Super Frame, or SF). If you do not control the device at the other end of the circuit (for example, if this is an Internet connection), contact your Service Provider to confirm the proper framing type.

Layer 2 Protocols
Error: ppp 5 is administratively up, but the link is down. Make sure the interface this PPP is connected to, t1 1/5, is administratively up. If not, debug t1 1/5 before continuing.
 
Has anyone seens these types of errors and what could cause them?

Thanks,

nimdatx
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pergr

The interface is unable to detect a valid T1 framing pattern.
This should be either Extended Super Frame (ESF) or D4 (also known as Super Frame, or SF).

Obviously, first check the framing config on both sites - but since it was working before it should be OK - unless some config was "lost".

Next, check your clocking config. It should be "clock line" at one end, and "clock source" on the other.

Since there is no good framing patter, but there is a signal, the problem should be frame/clock related.
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ASKER

I checked Clocking and Site 1 is set for Line and Site 2 is Internal. Now again nothing was changed and all framing config is set correctly on both of my routers. Now could this be a bad WIC on my end? Or can it be my ISP changed framing on there end?
The service provider typically transport this as unframed, and you do your own framing. You can check with them.

You could try to configure both ends as unframed, and see what happens...
How do I remove framing on both ends? Using Gui on Netvanta router. Could this be a bad WIC card?
ASKER CERTIFIED SOLUTION
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pergr

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Contacted my ISP and they looped to my CSU and while I was talking I moved my cable from router to demarc and circuit came back up. Not sure which fixed my issue, but I'm happy. I would most definately look at physical layer with these errors.

Thanks pergr.

nimdatx