Cisco ONS 15454 SDH - Page 496

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Cisco ONS 15454 SDH Procedure Guide, R7.0
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Chapter 17 DLPs D1 to D99
DLP- D88 Optical 1+1 Protection Test
Step 5 Switch the working port:
a. Click the Maintenance > Protection tabs.
b. In the Protection Groups area, click the 1+1 protection group.
c. Click the working port. Next to Switch Commands, click the Force button.
d. At the Confirm Manual Operation dialog box, click Yes .
e. In the Selected Group area, verify that the following text appears:
• Protect port - Protect/Active [FORCE_SWITCH_TO_PROTECT] [PORT STATE]
• Working port - Working/Standby [FORCE_SWITCH_TO_PROTECT], [PORT STATE]
Step 6 Verify that traffic on the test set connected to the node is still running. Some bit errors are normal, but
traffic flow should not be interrupted. If a traffic interruption occurs, complete Step 7, then refer to your
next level of support. If a traffic interruption does not occur, continue with the next step.
Step 7 Clear the switch on the working port:
a. Next to Switch Commands, click Clear.
b. In the Confirm Clear Operation dialog box, click Ye s.
Step 8 Switch the protect port:
a. In the Selected Group area, click the protect port.
b. Next to Switch Commands, click the Force button.
c. In the Confirm Force Operation dialog box, click Yes .
d. In the Selected Group area, verify that the following text appears:
• Protect port - Protect/Active [FORCE_SWITCH_TO_WORKING], [PORT STATE]
• Working port - Working/Standby [FORCE_SWITCH_TO_WORKING], [PORT STATE]
Step 9 Verify that traffic on the test set connected to the node is still running. If a traffic interruption occurs,
complete Step 10 and refer to your next level of support. If no traffic interruption occurs, proceed to
Step 11.
Step 10 Clear the switch on the protect port:
a. Next to Switch Commands, click Clear.
b. In the Confirm Clear Operation dialog box, click Ye s.
c. In the Selected Group area, verify the following states:
• Protect port - Protect/Standby
• Working port - Working/Active
When a switch event is cleared, NO COMMAND appears in the column to indicate that the switch event
is no longer in effect.
Step 11 Return to your originating procedure (NTP).