Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?




Hierarchy Level


Configure the maximum number of bytes allowed for incoming packets to burst above the peak information rate (PIR) and still be marked with medium-high packet loss priority (yellow). Packets that exceed the peak burst size (PBS) are marked with high packet loss priority (red).


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.


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), (1,000,000), or g (1,000,000,000).

  • Range: 1500 bytes through 100,000,000,000 bytes (100 GB)

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 11.1.