committed-burst-size
Syntax
committed-burst-size bytes;
Hierarchy Level
[edit dynamic-profiles profile-name firewall three-color-policer name single-rate], [edit dynamic-profiles profile-name firewall three-color-policer name two-rate], [edit firewall three-color-policer policer-name single-rate], [edit firewall three-color-policer policer-name two-rate]
Description
For a three-color policer, configure the committed burst size (CBS) as a number of bytes.
When you include the committed-burst-size statement
in the configuration, you must also include the committed-information-rate statement at the same hierarchy level.
In three-color policing, a committed information rate (CIR) defines the guaranteed bandwidth for traffic arriving at or departing from the interface under normal line conditions. A flow of traffic at an average rate that conforms to the CIR is categorized green.
During periods of average traffic rates below the CIR, any unused bandwidth capacity accumulates up to a maximum amount defined by the CBS. Short periods of bursting traffic (back-to-back traffic at averages rates that exceed the CIR) are also categorized as green provided that unused bandwidth capacity is available.
Traffic that exceeds both the CIR and the CBS is considered nonconforming.
Single-rate three-color policers use a dual token
bucket algorithm to measure traffic against a single rate
limit. Nonconforming traffic is categorized as yellow or red, based
on the excess-burst-size statement included in the policer
configuration.
Two-rate three-color policers use a dual-rate dual
token bucket algorithm to measure traffic against two rate
limits. Nonconforming traffic is categorized as yellow or red based
on the peak-information-rate and peak-burst-rate statements included in the policer configuration.
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
Required Privilege Level
firewall—To view this statement in the configuration.
firewall-control—To add this statement to the configuration.