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buffer-size (Dynamic Scheduling)


Hierarchy Level


Specify buffer size.


If you do not include this statement, the default scheduler transmission rate and buffer size percentages for queues 0 through 7 are 95, 0, 0, 5, 0, 0, 0, and 0 percent.


percent percentage—Buffer size as a percentage of total buffer.

remainder—Remaining buffer available.

temporal microseconds—Buffer size as a temporal value. The queuing algorithm starts dropping packets when it queues more than a computed number of bytes. This maximum is computed by multiplying the logical interface speed by the configured temporal value.

  • Range: The ranges vary by platform as follows:

  • For IQ PICs on M320 routers: 1 through 50,000 microseconds.

  • For IQ PICs on other M Series routers: 1 through 100,000 microseconds.

  • For other M Series routers: 1 through 200,000 microseconds.

$junos-scheduler-bs—Junos predefined variable that is replaced with the buffer size obtained from the RADIUS server when a subscriber authenticates over the interface to which the dynamic profile is attached.

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 9.3.

The $junos-cos-scheduler-bs predefined variable introduced in Junos OS Release 9.4.