Paradyne CSU User Manual

8. Troubleshooting

  

September 

2002

9128-A2-GB20-80

No receipt or 
transmission of data

Cross Connection of the 
DLCIs are configured 
incorrectly.

Verify the PVC connections and 
DLCIs by checking the 
network-discovered DLCIs on the 
LMI Reported DLCIs screen.

DLCI is inactive on the 
frame relay network.

„

Verify that the DLCI(s) is active 
on the LMI Reported DLCIs 
screen. If the DLCI(s) is not 
active, contact the service 
provider.

„

Verify the LMI Reported DLCI 
field on the Interface Status 
screen.

DTE is configured 
incorrectly.

Check the DTE’s configuration.

LMI is not configured 
properly for the DTE or 
network.

Configure LMI characteristics to 
match those of the DTE or 
network.

LMI link is inactive.

Verify that the LMI link is active on 
the network; the Status Msg 
Received counter on the Network 
Frame Relay Performance 
Statistics screen increments.

Losing Data

Frame relay network is 
experiencing problems.

Run PVC Loopback and Pattern 
tests to isolate the problem, then 
contact the service provider.

Out of Sync 

If Monitor Pattern was 
selected, it means the test 
pattern generator and 
receiver have not yet 
synchronized.

CIR settings for the units at 
each end are mismatched.

If the message persists, it 
means that 5 packets out 
of 25 are missing or are out 
of sequence.

„

Verify that the unit at the other 
end is configured to Send 
Pattern.

Correct unit configurations.

„

Correct the CIR setting so both 
units are configured the same.

„

Check the line’s error rate – the 
physical line quality.

Contact the service provider.