Cisco ONS 15454 Troubleshooting Manual page 55

Chapter 1 General Troubleshooting
Step 4 Click the Maintenance > Loopback tabs.
Choose OOS,MT from the Admin State column for the port being tested. If this is a multiport card,
Step 5
select the appropriate row for the port being tested.
Step 6 Choose Facility from the Loopback Type column for the port being tested. If this is a multiport card,
select the appropriate row for the port being tested.
Click Apply.
Step 7
Click Yes in the confirmation dialog box.
Step 8
Note
Complete the
Step 9
procedure on page
Test and Clear the DS-3, DS3N-12, DS3i-N-12, or EC1 Port Facility Loopback Circuit
If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step 1
Examine the traffic received by the test set. Look for errors or any other signal information that the test
Step 2
set is capable of indicating.
If the test set indicates a good circuit, no further testing is necessary with the facility loopback.
Step 3
Double-click the card to open the card view.
Depending on the card type, click the Maintenance > Loopback tabs.
Step 4
Choose None from the Loopback Type column for the port being tested.
Step 5
Step 6 Choose the appropriate state (IS; OOS,DSBLD; OOS,MT; IS,AINS) from the Admin State column for
the port being tested.
Click Apply.
Step 7
Click Yes in the confirmation dialog box.
Step 8
Step 9 Complete the
Create the Facility Loopback on the Source DS3E or DS3XM Port
This procedure applies to DS3E, DS3XM-6, and DS3XM-12 cards. It does not use the DS3XM card
FEAC loopback functions. For FEAC information, refer to the
DS3XM-12 Card Electrical Paths With FEAC Loopbacks" section on page
Connect an electrical test set to the port you are testing.
Step 1
Use appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the EIA connectors
or DSx panel for the port you are testing. The Tx and Rx terminals connect to the same port.
Adjust the test set accordingly. (For specific procedures to use the test set equipment, consult the
Step 2
manufacturer.)
November 2009
It is normal for the "LPBKFACILITY (DS1, DS3)" condition on page 2-169
loopback setup. The condition clears when you remove the loopback.
"Test and Clear the DS-3, DS3N-12, DS3i-N-12, or EC1 Port Facility Loopback Circuit"
1-11.
"Test the Electrical Cabling" procedure on page
1.2.1 Perform a Facility Loopback on a Source Electrical Port (West to East)
1-13.
"1.3 Troubleshooting DS3XM-6 or
Cisco ONS 15454 Troubleshooting Guide, R8.5
to appear during
1-45.
1-11