12-27
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 12 Maintenance
Network Test Procedures
Step 5
Proceed to the
“Test the Hairpin Loopback Circuit on the Destination Node XTC Card” procedure on
Procedure: Test the Hairpin Loopback Circuit on the Destination Node XTC Card
Step 1
If the test set is not already sending traffic, send test-set traffic on the loopback circuit.
Step 2
Examine the test traffic received by the test set. Look for errors or any other signal information indicated
by the test set.
Step 3
If the test set indicates a good circuit, no further testing is necessary with the loopback circuit.
a.
Clear the loopback circuit before testing the next segment of the circuit path.
b.
Proceed to the
“Perform a Terminal Loopback on a Destination XTC Card” procedure on
Step 4
If the test set indicates a faulty circuit, the problem may exist with the destination XTC card. Proceed to
the
“Test the Alternate Destination XTC Card” procedure on page 12-27
.
Procedure: Test the Alternate Destination XTC Card
Step 1
Perform a software reset on the active XTC card.
Caution
XTC side switches are service-affecting. Any live traffic on any card in the node will endure
a hit of up to 50 ms.
Note
After the active XTC goes into standby, the original standby slot becomes active. This causes
the ACT/STBY LED to become green on the former standby card.
Step 2
Resend test-set traffic on the loopback circuit. The test-set traffic routes through the alternate XTC card.
Step 3
If the test set indicates a faulty circuit, assume the cross-connect card is not causing the problem.
a.
Clear the loopback circuit before testing the next segment of the network circuit path.
b.
Proceed to the
“Perform a Terminal Loopback on a Destination XTC Card” procedure on
Step 4
If the test set indicates a good circuit, the problem could be a defective card. To confirm a defective
original XTC card, proceed to the
“Retest the Original Destination XTC Card” procedure on page 12-28
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...