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Communication between distinct network domains

  • US 10,397,102 B2
  • Filed: 03/22/2017
  • Issued: 08/27/2019
  • Est. Priority Date: 03/22/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • enabling, via a controller, routing of packets through all of a plurality of edge network devices connected to the controller by sharing segment information across the plurality of edge network devices, the routing performed via any one of the plurality of edge network devices without reference to any address of any of the packets identifying any of the plurality of edge network devices, the plurality of edge network devices including a first edge network device and a second edge network device;

    receiving, at the first edge network device in a first internal network domain, a packet from a first computing device, the packet directed to a second computing device associated with the second edge network device in a second internal network domain;

    adding, at the first edge network device, a label to the packet identifying a second border network device located at the border of the second internal network domain and a third network domain located between the first internal network domain and the second internal network domain;

    adding, at the first edge network device, another label to the packet identifying a first border network device located at the border of the first internal network domain and the third network domain, the label and the another label forming a label stack or encapsulation of the packet; and

    routing the packet to the first border network device.

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