vbr

Syntax

vbr peak rate sustained rate burst length;

Hierarchy Level

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

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

Unspecified bit rate (UBR); that is, bandwidth utilization is unlimited.

Options

burst length—Burst length, in cells. If you set the length to 1, the peak traffic rate is used.
Range: 1 through 4000 cells

peak rate—Peak rate, in bps or cps.
Range: 33 kbps through 135.6 Mbps (ATM OC-3); 33 kbps through 276 Mbps (ATM OC-12)

sustained rate—Sustained rate, in bps or cps.
Range: 33 kbps through 135.6 Mbps (ATM OC-3); 33 kbps through 276 Mbps (ATM OC-12)

Usage Guidelines

See Define the ATM 1 and ATM 2 Traffic-Shaping Profile.

Required Privilege Level

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

See Also

cbr, rtvbr, shaping