1-32
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
78-17235-01
Chapter 1 General Troubleshooting
1.6.3 Perform a Facility Loopback on an Intermediate-Node OC-N Port
Test the Ethernet Card
Step 1
Complete the
“Physically Replace a Card” procedure on page 1-155
for the suspected bad card and
replace it with a known-good one.
Caution
Removing a card that currently carries traffic on one or more ports can cause a traffic hit. To avoid this,
perform an external switch if a switch has not already occurred. Refer to the procedures in the
“1.10.1 Protection Switching, Lock Initiation, and Clearing” section on page 1-148
. For more
information, refer to the “Maintain the Node” chapter in the
Cisco ONS 15310-CL and
Cisco ONS 15310-MA Procedure Guide
.
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 (1 800 553-2447).
Step 4
Complete the
“Physically Replace a Card” procedure on page 1-155
for the defective card.
Step 5
Clear the terminal loopback on the port before testing the next segment of the network circuit path:
a.
Double-click the CE100T-8 card with the terminal loopback in the source node.
b.
Click the
Maintenance > Loopback
tabs.
c.
Select
None
from the Loopback Type column for the port being tested.
d.
Select the appropriate state (IS; OOS,DSBLD; OOS,MT) 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 before testing the next segment of the network circuit path:
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
“1.6.3 Perform a Facility Loopback on an Intermediate-Node OC-N Port” procedure on
page 1-32
.
1.6.3 Perform a Facility Loopback on an Intermediate-Node OC-N Port
Performing the facility loopback test on an intermediate node OC-N port (which carries the Ethernet
circuit) isolates whether this node is causing circuit failure. Complete the
“Create a Facility Loopback
on an Intermediate-Node OC-N Port” procedure on page 1-33
.
Note
The CE100T-8 Ethernet card only supports point-to-point configurations and is not directly implicated
in the intermediate node testing.
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