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Private allocated networks over shared communications infrastructure

  • US 10,291,753 B2
  • Filed: 01/08/2018
  • Issued: 05/14/2019
  • Est. Priority Date: 09/30/2009
  • Status: Active Grant
First Claim
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1. For a virtual switch executing on a host computer that hosts at least (i) a first virtual machine having an address in a first overlay network of a plurality of overlay networks implemented by the virtual switch encapsulating packets transmitted in a physical network and (ii) a second virtual machine having an address in a second overlay network of the plurality of overlay networks, a method comprising:

  • receiving a first packet from the first virtual machine, wherein the first packet comprises a first destination address in the first overlay network;

    making a forwarding decision for the first packet based on the first overlay network destination address;

    encapsulating the first packet using a second destination address in the physical network;

    transmitting the encapsulated packet to the physical network that processes the packet using the second destination address;

    receiving a second packet from the second virtual machine, wherein the second packet comprises a third destination address in the second overlay network;

    making a forwarding decision for the second packet based on the third destination address;

    encapsulating the second packet using a fourth destination address in the physical network; and

    transmitting the encapsulated second packet to the physical network that processes the second packet using the fourth destination address.

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