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Installing and managing flows in a flow table cache

  • US 9,569,368 B2
  • Filed: 12/13/2013
  • Issued: 02/14/2017
  • Est. Priority Date: 12/13/2013
  • Status: Active Grant
First Claim
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1. A non-transitory machine readable medium storing a program that when executed by at least one processing unit processes packets, the program comprising sets of instructions for:

  • generating and installing flows in a cache, wherein each flow is generated using at least one rule, from a flow table, which specifies performing a set of actions on incoming packets;

    validating one or more of the flows that are installed in the cache by determining whether a set of actions in each flow matches a corresponding rule in the flow table, wherein each flow is assigned to a separate execution thread to be validated; and

    removing or modifying each flow that has a different set of actions than a corresponding rule in the flow table in order to improve a performance of packet processing, wherein said generating and installing flows are executed in a first set of execution threads and said validating, removing, and modifying are executed in a second, different set of execution threads.

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