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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
optical attenuation
To set the attenuation level on a VOA (variable optical attenuator) module, use the optical attenuation
command. To revert to the default behavior, use the no form of the command.
optical attenuation manual value
no optical attenuation manual
Syntax Description
Defaults For single and double WB-VOA (wide-band variable optical attenuator) modules the default is 1 .7 dB.
For single band PB-OE (per-band optical equalizer) modules the default is 3.4 dB.
For dual band PB-OE modules the default is 3.7 dB.
Command Modes Interface configuration
Command History
Usage Guidelines Use this command to set the optical attenuation on a VOA module.
Examples The following example shows how to set the optical attenuation on a WB-VOA module.
Switch# configure terminal
Switch(config)# interface voain 7/0/0
Switch(config-if)# optical attenuation manual 100
The following example shows how to set the optical attenuation on a PB-OE module.
Switch# configure terminal
Switch(config)# interface voafilterin 7/0/0.1
Switch(config-subif)# optical attenuation manual 100
Related Commands
manual Specifies a manually entered attenuation value.
value Specifies the attenuation value in 0.1 dB. The value range for WB-VOA
modules is 17to 300. The value range for single band PB-OE modules is
34 to300. The value range for dua l b an d PB -OE mo dule s is 37 to 300.
Release Modification
12.1(10)EV2 This command was introduced.
Command Description
show interfaces Displays interface information.