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Chapter 1
General Troubleshooting
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.
Step 3
If the test set indicates a good circuit, no further testing is necessary with the facility loopback. Clear the
facility loopback:
a.
b.
c.
d.
e.
Step 4
Complete the
Test the Optical Card
Step 1
Complete the
and replace it with a known-good one.
Removing a card that currently carries traffic on one or more ports can cause a traffic hit. To avoid this,
Caution
perform an external switch if a switch has not already occurred. See the
Lock Initiation, and Clearing" section on page 2-260
refer to the Cisco ONS 15454 SDH Procedure Guide Chapter 15, "Maintain the Node."
Step 2
Resend test traffic on the loopback circuit with a known-good card installed.
Step 3
If the test set indicates a good circuit, the problem is probably the defective card. Return the defective
card to Cisco through the RMA process. Log into the Cisco Technical Support Website at
http://www.cisco.com/techsupport for more information or log into
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml to obtain a directory of toll-free Cisco
TAC numbers for your country.
Complete the
Step 4
Clear the facility (line) loopback:
Step 5
a.
b.
c.
d.
e.
Complete the
Step 6
on page
July 2005
Click the Maintenance > Loopback > Port tabs.
Choose None from the Loopback Type column for the port being tested.
Choose the appropriate state (Unlocked; Locked,disabled; Unlocked,automaticInService) from the
Admin State column for the port being tested.
Click Apply.
Click Yes in the confirmation dialog box.
"Test the Optical Card" procedure on page
"Physically Replace a Traffic Card" procedure on page 2-271
"Physically Replace a Traffic Card" procedure on page 2-271
Click the Maintenance > Loopback > Port tabs.
Choose None from the Loopback Type column for the port being tested.
Choose the appropriate state (Unlocked; Locked,disabled; Unlocked,automaticInService) from the
Admin State column for the port being tested.
Click Apply.
Click Yes in the confirmation dialog box.
"1.3.2 Perform a Terminal (Inward) Loopback on a Source-Node Optical Port" procedure
1-42.
1.3.1 Perform a Facility (Line) Loopback on a Source-Node Optical Port
1-41.
for basic instructions. For detailed information,
Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
for the suspected bad card
"2.10.2 Protection Switching,
for the faulty card.
1-41
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