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frame-mode (Dynamic Traffic Shaping)


Hierarchy Level


Configure the mode to shape downstream ATM traffic based as frames.


The default is frame-mode.



Byte adjustment value for the cell-mode or frame-mode shaping options.


Predefined variable for byte adjustment that is replaced with a value obtained from the RADIUS server when a subscriber authenticates over the interface to which the dynamic profile is attached.

frame-mode-bytes frame-mode-bytes

Overhead bytes when in frame-mode. Traffic shaping is based on the number of bytes in the frame, without regard to cell encapsulation or padding overhead.


Predefined variable for frame mode shaping. This variable can not be used when the overhead-accounting bytes bytes option is configured.

  • Range: –120 through 124 bytes

Best Practice:

We recommend using the frame-mode-bytes frame-mode-bytes option rather than the bytes option.


If you specify a value for the bytes bytes option, you cannot specify a value for either the frame-mode-bytes option.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 10.2.

Variable $junos-cos-byte-adjust-frame introduced in Junos OS Release 13.1.