Test And Clear The Ethernet Facility Loopback Circuit - Cisco ONS 15600 SDH Troubleshooting Manual

1.3.3 Create a Facility Loopback on an Intermediate-Node Ethernet Port
d.
e.
f.
g.
h.
i.
j.
k.
Confirm that the newly created circuit appears on the Circuits tab list as a two-way circuit.
Step 4
Note
Step 5 Create the facility loopback on the destination port being tested:
a.
b.
c.
d.
e.
f.
g.
Complete the
Step 6

Test and Clear the Ethernet 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. Clear the
Step 3
facility loopback from the port:
a.
b.
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
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In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as
Eth1toEth3.
Leave the Bidirectional check box checked.
Click Next.
In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and VC where the
test set is connected.
Click Next.
In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and VC used for
the source dialog box.
Click Next.
In the Circuit Creation circuit routing preferences dialog box, leave all defaults. Click Finish.
It is normal for the "LPBKFACILITY (GIGE)" condition on page 2-88
loopback setup. The condition clears when you remove the loopback.
Go to the node view of the intermediate node:
Choose View > Go To Other Node from the menu bar.
•
Choose the node from the drop-down list in the Select Node dialog box and click OK.
•
In node view, double-click the intermediate-node card that requires the loopback.
Click the or Maintenance > Ethernet > Loopback > Port tabs.
Select Locked,maintenance from the Admin State column. If multiple ports are available, select
the row appropriate for the desired port.
Select Facility from the Loopback Type column. If multiple ports are available, select the row
appropriate for the desired port.
Click Apply.
Click Yes in the confirmation dialog box.
"Test and Clear the Ethernet Facility Loopback Circuit" procedure on page
Click the Maintenance > Ethernet > Loopback > Port tabs.
Choose None from the Loopback Type column for the port being tested.
Chapter 1 General Troubleshooting
to appear during a
1-36.
July 2010