Cisco ONS 15454 Troubleshooting Manual page 456

2.9.2 Protection Switching, Lock Initiation, and Clearing
Step 4 Click Ring Map.
In the BLSR Ring Map window, verify that each node in the ring appears on the ring map with a node
Step 5
ID and IP address.
Step 6 Click Close.
2.9.2 Protection Switching, Lock Initiation, and Clearing
The following sections give instructions for port, ring, and span switching and switch-clearing
commands, as well as lock-ons and lockouts.
Initiate a 1+1 Force Switch Command
This procedure switches 1+1 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 signal degrade (SD) or signal
fail (SF) conditions. A Force switch does not switch traffic on a protect path. A Force switch preempts
a Manual switch.
In node view, click the Maintenance > Protection tabs.
Step 1
In the Protection Groups area, select the protection group with the port you want to switch.
Step 2
In the Selected Groups area, select the port belonging to the card you are replacing. You can carry out
Step 3
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.
Step 4 In the Switch Commands area, click Force.
Click Yes in the Confirm Force Operation dialog box.
Step 5
If the switch is successful, the group says "Force to working" in the Selected Groups area.
Step 6
Initiate a 1+1 Manual Switch Command
This procedure switches 1+1 protection group traffic from one port in the group to the other using a
Manual switch.
Cisco ONS 15454 Troubleshooting Guide, R8.5
2-262
Chapter 2 Alarm Troubleshooting
November 2009