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Hierarchy Level

Release Information

Statement introduced in Junos OS Release 7.6.


For Gigabit Ethernet IQ, Channelized IQ PICs, and FRF.15 and FRF.16 LSQ interfaces only, base the delay-buffer calculation on a delay-buffer rate.


If you do not include this statement, the delay-buffer calculation is based on the guaranteed rate if one is configured, or the shaping rate if no guaranteed rate is configured. For more information, see Bandwidth and Delay Buffer Allocations by Configuration Scenario.


percent percentage—For LSQ interfaces, delay-buffer rate as a percentage of the available interface bandwidth.

Range: 1 through 100 percent

rate—For IQ and IQ2 interfaces, delay-buffer rate, in bits per second (bps). You can specify a value in bits per second either as a complete decimal number or as a decimal number followed by the abbreviation k (1000), m (1,000,000), or g (1,000,000,000).

Range: 1000 through 6,400,000,000,000 bps


Through Junos OS Release 13.3, the upper limit is 160,000,000,000 bps. Beginning with Junos OS Release 14.1, the upper limit is 6,400,000,000,000 bps.

Required Privilege Level

interface—To view this statement in the configuration.

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