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OVERLAY TRANSPORT VIRTUALIZATION

  • US 20120176934A1
  • Filed: 03/16/2012
  • Published: 07/12/2012
  • Est. Priority Date: 07/31/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • creating an overlay network between edge devices operating in different network sites and in communication through a core network, wherein creating said overlay network comprises mapping at a first edge device in a first network site, addresses for network devices located in one or more other network sites to addresses of the edge devices located in the same network sites as the network devices;

    receiving a packet at said first edge device from a network device in said first network site, the packet comprising a destination address of one of the network devices in said one or more other network sites;

    encapsulating the packet with a header comprising a destination address of the edge device mapped to the destination address of the network device; and

    forwarding said encapsulated packet to the core network.

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