Multipoint Wireless Support for the Cisco uBR7200 Series Universal Broadband Router

radio alc

radio alc

To enable the automatic level control (ALC) and the power ranging, and to set the ALC attributes at the headend, use the radio alc interface configuration command. To turn off the ALC and power ranging, use the no form of this command.

radio alc [interval interval [if-mode standard robust] [rf-mode very-fast fast slow very-slow]]

 

 

no radio alc

 

 

 

 

 

Syntax Description

 

interval

(Optional) if rf-mode.If one of the these optional modes is not specified,

 

 

 

the radio interface assumes the values specified prior to ALC and power

 

 

 

ranging being off. Otherwise, the default values of 96 ms, standard, and

 

 

 

fast are used for interval, if-mode, and rf-mode, respectively. Valid range

 

 

 

is 32 ms to 1024 ms, in multiples of 32 ms.

 

 

 

 

 

 

interval

Scheduling interval is the regular interval at which the ALC grant in MAP

 

 

 

is transmitted to the subscriber units. Valid range is 50 to 200 ms.

 

 

 

 

 

 

if-mode

standard robust (standard is the default).

 

 

 

 

 

 

rf-mode

very-fast fast slow very-slow (fast is the default).

 

 

 

 

Defaults

Command Modes

Command History

Usage Guidelines

The ALC and power ranging are on.

Interface configuration

ReleaseModification

12.1(3)XQ1

This command was introduced.

 

 

The radio alc command enables the ALC and power ranging, and sets the scheduling interval of all the powers for the subscriber IDs of the current radio interface. It also sets the IF and RF modes when the ALC is on. The scheduling interval is the regular interval at which the ALC enables MAPs to be transmitted to the subscribers.

Examples

 

The following example shows how to specify the ALC scheduling interval to 64 ms and set the if-mode

 

 

and rf-modeto default values:

 

 

Router (config-if)#radio alc interval 64 if-mode standard rf-mode fast

 

 

 

 

Related Commands

 

Command

Description

 

 

 

 

 

 

show interface radio

Displays the radio ALC settings.

 

 

slot/port alc

 

 

 

 

 

Cisco IOS Release 12.1(5)XM

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Pengo Computer Accessories UBR7200 manual Radio alc, Defaults Command Modes Command History Usage Guidelines, Slot/port alc