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 ]
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 the 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 the 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.
Range: 1 through 4000 cells
peak rate
—Peak rate, in
bits per second or cells per second.
Range: For ATM1 interfaces, 33 Kbps through 135.6 Mbps (ATM OC3); 33 Kbps through 276 Mbps (ATM OC12). For ATM2 IQ OC3 and OC12 interfaces, 33 Kbps through 542,526,792 bps. For ATM2 IQ OC48 interfaces, 33 Kbps through 2,170,107,168 bps. For ATM2 IQ DS3 and E3 interfaces, from 33 Kbps through the maximum rate, which depends on the ATM encapsulation and framing you configure.
sustained rate
—Sustained
rate, in bits per second or cells per second.
Range: For ATM1 interfaces, 33 Kbps through 135.6 Mbps (ATM OC3); 33 Kbps through 276 Mbps (ATM OC12).
For ATM2 IQ OC3 and OC12 interfaces, 33 Kbps through 542,526,792 bps.
For ATM2 IQ OC48 interfaces, 33 Kbps through 2,170,107,168 bps.
For ATM2 IQ DS3 and E3 interfaces, from 33 Kbps through the maximum rate, which depends on the ATM encapsulation and framing you configure.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Release Information
Statement introduced before Junos OS Release 7.4.