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Packet processing for logical datapath sets

  • US 10,021,019 B2
  • Filed: 07/06/2012
  • Issued: 07/10/2018
  • Est. Priority Date: 07/06/2010
  • Status: Active Grant
First Claim
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1. For a first managed edge switching element (MESE), a method for processing packets for a logical datapath set (LDPS) implemented by the first MESE and a plurality of other MESEs, the method comprising:

  • at the first MESE, receiving a packet having a destination address associated with the LDPS from a source machine that couples directly to the first MESE, wherein each particular MESE that implements the LDPS has at least one machine associated with the LDPS coupled directly to the particular MESE;

    determining whether the destination address is known to the first MESE;

    when the destination address of the packet is known to the first MESE, transmitting the packet via a first tunnel to a second MESE, in the plurality of other MESEs to which the destination address corresponds; and

    when the destination address is unknown to the first MESE, transmitting the packet via a second tunnel to a managed non-edge switching element (MNESE) of a plurality of MNESEs and not to any other MESE in the plurality of other MESEs, wherein the MNESE receives the packet and forwards the packet to the destination address through a third MESE of the plurality of other MESEs, wherein each MNESE of the plurality of MNESEs stores data for forwarding packets to a plurality of destination addresses and does not receive packets directly from the machines associated with the LDPS.

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