Nicira, Inc.

Nicholas Shelly

Teemu Koponen

Ethan J Jackson

Jarno Rajahalme

Some embodiments provide a method for a forwarding element that forwards packets. The method receives a packet and performs a hash lookup operation on one or more hash tables to find a matching rule for a packet. The method consults a common match data set to generate a wildcard mask. The method generates a flow based on the matching rule and the wildcard mask. The flow is used to process other packets that match each bit which is un-wildcarded.

Generating flows using common match techniques

Some embodiments provide a method for a forwarding element that forwards packets. The method receives a packet. The method consults a tree structure to generate a wildcard mask. The consulting includes traversing the tree structure by tracing a set of bits from the packet header and un-wildcarding the corresponding set of bits from the wildcard mask. The method identifies a matching rule for the packet. The method generates a flow based on the matching rule and the wildcard mask. The flow is used to process each other packet that matches each un-wildcarded bit of the flow.

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Palo Alto, CA, United States of America

Nicholas Shelly