peak-burst-size
Syntax
peak-burst-size bytes;
Hierarchy Level
[edit dynamic-profiles profile-name firewall three-color-policer name two-rate], [edit firewall three-color-policer policer-name two-rate]
Description
For a two-rate three-color policer, configure the peak burst size (PBS) as a number of bytes. The PBS defines the maximum number of bytes of unused peak bandwidth capacity that can be accumulated. The accumulated bandwidth allows for moderate periods of bursting traffic that exceeds the peak information rate (PIR) and the committed burst size (CBS).
When you include the peak-burst-size statement
in the configuration, you must also include the committed-burst-size and peak-information-rate statements at the same hierarchy
level.
Two-rate three-color policers use a dual-rate dual token bucket algorithm to measure traffic against two rate limits.
A traffic flow is categorized green if it conforms to both the committed information rate (CIR) and the CBS-bounded accumulation of available committed bandwidth capacity.
A traffic flow is categorized yellow if exceeds the CIR and CBS but conforms to the PIR. Packets in a yellow flow are marked with
medium-highpacket loss priority (PLP) and then passed through the interface.A traffic flow is categorized red if exceeds the PIR and the PBS-bounded accumulation of available peak bandwidth capacity. Packets in a red traffic flow are marked with
highPLP and then either passed through the interface or optionally discarded.
Options
bytes—Number
of bytes. You can specify a value in bytes 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: 1500 through 100,000,000,000 bytes
-
Range: 125 through 266338370 (ACX platforms on Junos EVO)
Required Privilege Level
firewall—To view this statement in the configuration.
firewall-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 7.4.
Support at the [edit dynamic-profiles ... two-rate] hierarchy level introduced in Junos OS Release 11.4.