1-22
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 1 General Troubleshooting
1.2.5 Perform a Terminal Loopback on an Intermediate-Node Optical Port
c.
Select
None
from the Loopback Type column for the port being tested.
d.
Select the appropriate state (
Unlocked
;
Locked,disabled
;
Locked,maintenance
;
Unlocked,automaticInservice
) in the Admin State column for the port being tested.
e.
Click
Apply
.
f.
Click
Yes
in the confirmation dialog box.
Step 4
Clear the terminal loopback circuit:
a.
Click the
Circuits
tab.
b.
Choose the loopback circuit being tested.
c.
Click
Delete
.
d.
Click
Yes
in the Delete Circuits dialog box. Do not check any check boxes.
Step 5
Complete the
“Test the Optical Card” procedure on page 1-22
Test the Optical Card
Step 1
Complete the
“Replace an I/O Card” procedure on page 2-134
for the suspected bad card and replace it
with a known-good one.
Step 2
Resend test traffic on the loopback circuit with a known-good card.
Step 3
If the test set indicates a good circuit, the problem was probably the defective card. Return the defective
card to Cisco through the RMA process. Contact Cisco Technical Support at (1 800 553-2447).
Step 4
Complete the
“Replace an I/O Card” procedure on page 2-134
for the defective card.
Step 5
Clear the terminal loopback on the port:
a.
Double-click the source-node card with the terminal loopback.
b.
Click the
Maintenance > Loopback > Port
tabs.
c.
Select
None
from the Loopback Type column for the port being tested.
d.
Select the appropriate state (
Unlocked
;
Locked,disabled
;
Locked,maintenance
;
Unlocked,automaticInservice
) in the Admin State column for the port being tested.
e.
Click
Apply
.
f.
Click
Yes
in the confirmation dialog box.
Step 6
Clear the terminal loopback circuit:
a.
Click the
Circuits
tab.
b.
Choose the loopback circuit being tested.
c.
Click
Delete
.
d.
Click
Yes
in the Delete Circuits dialog box. Do not check any check boxes.
Step 7
Complete the
“1.2.6 Perform a Facility Loopback or Payload Loopback on a Destination-Node Optical
.
Содержание Cisco ONS 15600 SDH
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