Multi-flow multi-level leaky bucket policer

Details Multi-flow multi-level leaky bucket policer Multi-flow multi-level leaky bucket policer

2008-06-17

2008-06-17

Rao, Seema S. (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S252000

Reexamination Certificate

active

07388837

ABSTRACT:
The invention provides a method and apparatus for policing a traffic flow in which a first stage of policing is performed on the traffic flow to produce a first stage conforming flow and a first stage violating flow. These two flows are then policed again in a second stage of policing, such that the first stage conforming flow can take advantage of a capacity allowed for the first stage violating flow which is unused by the first stage violating flow. In some embodiments, performing a first stage of policing involves associating each packet of the traffic flow with one of a plurality of sub-flows, policing at least one of the plurality of sub-flows individually to produce for each sub-flow a respective conforming sub-flow and a respective violating sub-flow. The conforming sub-flow(s) collectively are the first stage conforming flow. The violating sub-flows collectively are the first stage violating flow.

REFERENCES:
patent: 6185210 (2001-02-01), Troxel
patent: 7042848 (2006-05-01), Santiago et al.
A Two Rate Three Color Marker, Network Working Group Request, pp. 1-5, Sep. 1999, J. Heinanen, Telia Finland, R. Guerin, University of Pennsylvania.
A Single Rate Three Color Marker, Network Working Group Request, pp. 1-6, Sep. 1999, J. Heinanen, Telia Finland, R. Guerin, University of Pennsylvania.

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