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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
Interface Configuration Commands
laser control safety enable
To enable laser safety control on a wave, waveethernetphy, or tengigethernetphy interface, use the laser
control safety enable command. To disable laser safety control, use the no form of this command.
laser control safety enable
no laser control safety
Syntax Description This command has no other arguments or keywords.
Defaults Disabled
Command Modes Interface configuration
Command History
Usage Guidelines Use this command to automatically shut down the lasers transmitting to the trunk fiber when a loss of
light failure occurs, such as a trunk fiber cut. Enable laser safety control on all wave interfaces in the
shelf.
Laser safety control uses the same protocol state machine as OFC, but not the same timing. L aser sa fety
control uses the pulse interval and pulse durations timers compliant with the ALS (automatic laser
shutdown) standard (ITU-T G.664).
Caution Do not configure laser safety control when OFC is enabled. Combining these features interferes with
the OFC safety protocol operation.
Caution Use this command only with line card protected configurations or unprotected configurat ions .
Examples The following example shows how to enable laser safety control on a wave interface.
Switch# configure terminal
Switch(config)# interface wave 2/0
Switch(config-if)# laser control safety enable
Related Commands
Release Modification
12.1(10)EV2 This command was introduced.
Command Description
show interfaces Displays interface information.