Cisco ONS 15454 Troubleshooting Manual page 28

1.3.6 Perform a Hairpin Test on a Destination Node Port (East to West)
d.
e.
Complete the
Step 5
procedure on page
cross-connect card.
Step 6 To confirm a defective original cross-connect card, complete the
Cross-Connect Card" procedure on page
Retest the Original XC10G Cross-Connect Card
Step 1 Initiate an external switching command (side switch) on the XC10G cross-connect cards:
a.
b.
c.
d.
Resend test traffic on the loopback circuit.
Step 2
If the test set indicates a faulty circuit, the problem is probably the defective card. Return the defective
Step 3
card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447) and proceed to
the test does not indicate a faulty circuit, proceed to
Complete the
Step 4
cross-connect card.
Step 5 If the test set indicates a good circuit, the cross-connect card might have had a temporary problem that
was cleared by the side switch. Clear the hairpin circuit:
a.
b.
c.
d.
e.
Complete the
Step 6
procedure on page
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-28
Click Yes in the Delete Circuits dialog box.
Confirm that the hairpin circuit is deleted form the Circuits tab list.
"Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)"
1-18. If the test set indicates a good circuit, the problem might be a defective
Determine the standby cross-connect card. On both the physical node and the CTC node view
window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED
is green.
In node view, select the Maintenance > Cross-Connect > Card tabs.
From the Cross-Connect Cards menu, choose Switch.
Click Yes in the Confirm Switch dialog box.
Note After the active cross-connect goes into standby mode, the original standby card becomes
active and its ACT/SBY LED turns green. The former active card becomes standby and its
ACT/SBY LED turns amber.
"Replace an In-Service Cross-Connect Card" procedure on page 3-2
Click the Circuits tab.
Choose the hairpin circuit being tested.
Click Delete.
Click Yes in the Delete Circuits dialog box.
Confirm that the hairpin circuit is deleted form the Circuits tab list.
"Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)"
1-18.
"Retest the Original XC10G
1-14.
Step 5.
Chapter 1 General Troubleshooting
Step
for the defective
November 2004
4. If