Cisco ONS 15310-MA Troubleshooting Manual page 149

Chapter 2 Alarm Troubleshooting
The lock-on or lockout is cleared.
Initiate an ONS 15310-MA SDH 1:1 Card Switch Command
The Switch command only works on the Active card, whether it is working or protect. It does not work
Note
on the Standby card.
In node view, click the Maintenance > Protection tabs.
Step 1
Click the protection group that contains the card you want to switch.
Step 2
Under Selected Group, click the active card.
Step 3
Next to Switch Commands, click Switch.
Step 4
The working slot should change to Working/Standby and the protect slot should change to
Protect/Active.
Initiate a Force Switch for All Circuits on a Path Protection Span
This procedure forces all circuits in a SNCP from the working span to the protect. It is used to remove
traffic from a card that originates or terminates SNCP circuits.
Caution The Force command overrides normal protective switching mechanisms. Applying this command
incorrectly can cause traffic outages.
Traffic is not protected during a Force protection switch.
Caution
Log into a node on the network.
Step 1
In node view, choose Go to Network View from the View menu.
Step 2
Right-click a network span and choose Circuits.
Step 3
The Circuits on Span dialog box shows the SNCP circuits, including circuit names, locations, and a color
code showing which circuits are active on the span.
Click the Perform Path Protection span switching field.
Step 4
Step 5 Choose Force Switch Away from the drop-down list.
Step 6 Click Apply.
Step 7 In the Confirm SNCP Switch dialog box, click Yes.
Step 8 In the Protection Switch Result dialog box, click OK.
In the Circuits on Span dialog box, the switch state for all circuits is FORCE. Unprotected circuits do
not switch.
78-18663-01
Frequently Used Alarm Troubleshooting Procedures
Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
2-149