[Contents] [Prev] [Next] [Index] [Report an Error]

vbr

Syntax



vbr peak rate sustained rate burst length;

Hierarchy Level



[edit interfaces interface-name atm-options
vpi vpi-identifier shaping],
[edit interfaces interface-name unit logical-unit-number address address family family multipoint-destination address shaping],
[edit interfaces interface-name unit logical-unit-number shaping],
[edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number address address family family multipoint-destination address shaping],
[edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number shaping]

Release Information

Statement introduced before JUNOS Release 7.4.

Description

For ATM encapsulation only, define the variable bandwidth utilization in the traffic-shaping profile.

When you configure the variable bandwidth utilization, you must specify all three options (burst, peak, and sustained). You can specify rate 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). You can also specify rate in cells per second by entering a decimal number followed by the abbreviation c; values expressed in cells per second are converted to bits per second by means of the formula 1 cps = 384 bps.

Default

If the vbr statement is not specified, bandwidth utilization is unlimited.

Options

burst length—Burst length, in cells. If you set the length to 1, the peak traffic rate is used.
peak rate—Peak rate, in bits per second or cells per second.
sustained rate—Sustained rate, in bits per second or cells per second.

Usage Guidelines

See Configuring ATM CoS on the Logical Interface.

Required Privilege Level

interface—To view this statement in the configuration.

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

vbr