Cisco ONS 15310-MA Troubleshooting Manual page 146

Frequently Used Alarm Troubleshooting Procedures
2.8.2 Typical Card LED Activity During Reset
When a traffic card is inserted, the following LED activities occur:
1.
2.
2.9 Frequently Used Alarm Troubleshooting Procedures
This section provides procedures that are frequently used when troubleshooting alarms. Most of these
procedures are summarized versions of more detailed procedures found in the Cisco ONS15310-MA
SDH Procedure Guide. They are included in this chapter for the user's convenience. For further
information, please refer to the Cisco ONS15310-MA SDH Procedure Guide.
2.9.1 Protection Switching, Lock Initiation, and Clearing
The following sections give instructions for port and span switching and switch-clearing commands, as
well as lock-ons and lockouts.
Initiate a 1+1/LMSP Protection Port Force Switch Command
This procedure switches 1+1/LMSP protection group traffic from one port in the group to the other using
a Force switch.
The Force command overrides normal protective switching mechanisms. Applying this command
Caution
incorrectly can cause traffic outages.
Caution Traffic is not protected during a Force protection switch.
Note A Force command switches traffic on a working path even if the path has SD or SF conditions. A Force
switch does not switch traffic on a protect path. A Force switch preempts a Manual switch.
Step 1 In node view, click the Maintenance > Protection tabs.
Step 2 In the Protection Groups area, select the protection group with the port you want to switch.
Step 3 In the Selected Groups area, select the port belonging to the card you are replacing. You can carry out
this command for the working or protect port. For example, if you need to replace the card with the
Protect/Standby port, click this port.
In the Switch Commands area, click Force.
Step 4
Click Yes in the Confirm Force Operation dialog box.
Step 5
Step 6 If the switch is successful, the group says "Force to working" in the Selected Groups area.
Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
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The ACT LED blinks once and turns off for 5 to 10 seconds.
The ACT LED turns on.
Chapter 2 Alarm Troubleshooting
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