Basic Two-Rate Three-Color Policers

Owned by Jean-luc KRIKER
Last updated: Oct 08, 2020
1 min read


https://www.juniper.net/documentation/en_US/junos/topics/topic-map/policer-two-rate-three-color.html



  • Committed information rate (CIR)—Bandwidth limit for guaranteed traffic.

  • Committed burst size (CBS)—Maximum packet size permitted for bursts of data that exceed the CIR.

  • Peak information rate (PIR)—Bandwidth limit for peak traffic.

  • Peak burst size (PBS)—Maximum packet size permitted for bursts of data that exceed the PIR.



Two-rate tricolor marking (two-rate TCM) classifies traffic as belonging to one of three color categories and performs congestion-control actions on the packets based on the color marking:










action loss-priority high then discard