QoS - Policing and Shaping
4 important questions on QoS - Policing and Shaping
What is the difference between Traffic Policing and Traffic Shaping?
Shapers Buffer and delay outgoing traffic that momentarily peaks above the desired rate until it drops down again. If the rate is below the desired rate the traffic is sent immediatly.
How does the single-rate two-color policers work?
How does the single-rate three-color policers work?
Marking down or Dropping are performed for either of the 3 states.
The first bucket operates much like the single-rate two-color system, except in period of low traffic the excess Tokens are placed in a second bucket instead of discarded, referred to as the excess burst (Be).
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How does the two-rate Three-Color policers work?
Another difference is that the traffic is checked against the PIR at first and if it conforms it is checked against the CIR. This means a Violate condition is checked first, then an exceed condition and then a conform condition.
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