QoS policing command

martin_lx1980 · ‎06-08-2012

I have read the conception of single-rate,two-color policing, single-rate three-color policing and two-rate three-color policing. But I don’t know how to implement them with policing command. Policing commands are so complicated and make me so confused with them

police bps [[bc] normal-burst-bytes [maximum-burst-bytes | [be] [burst-bytes]]] [pir bps [be burstbytes]] [conform-action action [exceed-action action [violate-action action]]]

police cir bps [[bc] normal-burst-bytes [maximum-burst-bytes | [be] [burst-bytes]]] [pir bps [be burst-bytes]] [conform-action action [exceed-action action [violate-action action]]]

what do bps, normal-burst-bytes, maximum-burst-bytes and burst-bytes mean? When should I use keyword cir,bc ,be and pir? Could you give me some examples with commands?

Thanks a lot

Martin

David Santos · ‎06-08-2012

Can this table help you?

CB Policing Mechanics
Feature	Behavior of Single-Rate, Two-Color	Behavior of Single-Rate, Three-Color	Behavior of Dual-Rate, Three-Color
Size of "first" bucket	Bc (bytes)	Bc (bytes)	Bc (bytes)
Size of "second" bucket	N/A	Be (bytes)	Be (bytes)
Refill of first bucket	Prorated portion of Bc based on packet arrival time	Prorated portion of Bc based on packet arrival time	Prorated portion of Bc based on packet arrival time
Refill of second bucket	N/A	Filled by spilled Tokens from refill of first bucket	Prorated portion of Be based on packet arrival time
Logic for "conform" action	1^st bucket => packet size; decrement 1^st bucket by packet size	1^st bucket => packet size; decrement 1^st bucket by packet size	1^st bucket => packet size; decrement both buckets by packet size
Logic to choose "exceed" action	All packets that do not conform	Doesn't conform, but 2^nd bucket => packet size; decrement 2^nd bucket by packet size	Doesn't conform, but 2^nd bucket => packet size; decrement 2^nd bucket by packet size
Logic to choose "violate" action	N/A	All other packets	All other packets

QoS policing command

CB Policing Mechanics