7. Monitoring and Troubleshooting
Table 7-7.
7-18
Troubleshooting (3 of 3)
Symptom
Possible Cause
1. Network cable problem.
Yellow at
Network
message appears
2. Far-end device has lost
framing sync on the line.
3. Facility problem.
DTE has detected an LOS or
Yellow at DTE
message appears
LOF condition.
March 2001
Solutions
1. Check that your network cable
is securely attached at both
ends.
2. Check the status of the
far-end device.
3. Contact your facility provider.
1. Check the status of the DTE.
2. Check that the DTE
Drop/Insert (DSX-1) cable is
securely attached at both
ends.
3160-A2-GB24-10