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Cisco ONS 15530 Configuration Guide and Command Reference
78-14227-01, Cisco IOS Release 12.1(10)E2
AppendixA Command Reference
APS Commands
aps switch
To request an APS switchover from the working path to the protection path, or from the protection path
to the working path, use the apsswitch command. To clear an APS switchover request , use the apsclear
command.
aps switch group-name {force | manual} {protection-to-working | working-to-protection}
Syntax Description
Defaults None
Command Modes Privileged EXEC
Command History
Usage Guidelines T he CiscoONS 15530 supports APS switchover requests from the CLI (command-line interface). These
requests have priorities based on the condition of the protection signal and the existence of other
switchover requests. Three types of requests exist:
•Lockout requests—Have the highest priority and take effect regardless of the condition of the
protection signal. A lockout prevents the signal from switching over from the working interface to
the protection interface.
•Forced switchover requests—Have the next highest priority and are only prevented when an existing
lockout on the protection interface or the protection signal has failed.
•Manual switchover requests—Have the lowest priority and only occur if there is no protection
interface lockout, a forced switchover, or the signal has failed or degraded.
In summary, the priority order is:
1. Lockout
2. Signal failure on the protection path
3. Forced signal switchover
4. Signal failure on the working path
group-name Specifies the name of the associated pair of interfaces.
force Causes a switchover if no lockout is in effect.
manual Causes a switchover if the signal is good and no lockout is in effect.
protection-to-working Causes a manual signal switchover from the protection path to the working
path if the protection path signal has not failed.
working-to-protection Causes a manual signal switchover from the working path to the protection
path whether the working path signal is active or not.
Release Modification
12.1(10)EV2 This command was introduced.