Cisco ONS 15454 DWDM Manual page 9

Chapter 1 General Troubleshooting
In node view (single-shelf mode) or shelf view (multishelf mode), double-click the card to display the card
Step 3
view.
Step 4 Click the Maintenance > Loopback tabs.
Choose OOS,MT (or locked,maintenance) from the Admin State column for the port being tested. If
Step 5
this is a multiport card, select the appropriate row for the desired port.
Step 6 Choose Facility (Line) from the Loopback Type column for the port being tested. If this is a multiport
card, select the appropriate row for the desired port.
Click Apply.
Step 7
Step 8 Click Yes in the confirmation dialog box.
Note
Complete the
Step 9
Test and Clear the MXP or TXP 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 no errors, no further testing is necessary with the facility loopback. Clear the
Step 3
facility loopback:
a.
b.
c.
d.
e.
Complete the
Step 4
Test the MXP or TXP Card
Complete the
Step 1
replace it with a known-good one.
78-17742-02
It is normal for the "LPBKFACILITY (ESCON)" condition on page
(FC)" condition on page
"LPBKFACILITY (ISC)" condition on page
on page 2-97 to appear during loopback setup. The condition clears when you remove the
loopback.
"Test and Clear the MXP or TXP Facility Loopback Circuit" procedure on page
Click the Maintenance > Loopback tabs.
Choose None from the Loopback Type column for the port being tested.
Choose the appropriate state to place the port in service, out of service and disabled, out of service
for maintenance, or automatically in service from the Admin State column for the port being tested.
Click Apply.
Click Yes in the confirmation dialog box.
"Test the MXP or TXP Card" procedure on page
"Physically Replace a Card" procedure on page 2-172
1.2.1 Perform a Facility Loopback on a Source-Node MXP or TXP Port
2-95, "LPBKFACILITY (GE)" condition on page
2-96or the
Cisco ONS 15454 DWDM Troubleshooting Guide, R7.0.1
2-95, "LPBKFACILITY
2-96,
"LPBKFACILITY (TRUNK)" condition
1-9.
for the suspected bad card and
1-9.
1-9