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Detecting device presence for a layer 3 connection using layer 2 discovery information

  • US 10,244,416 B2
  • Filed: 06/14/2017
  • Issued: 03/26/2019
  • Est. Priority Date: 09/12/2011
  • Status: Active Grant
First Claim
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1. A method of a first device accessing functionality on a second device, the method comprising:

  • monitoring for presence of the second device using a layer-2 discovery mechanism without forming a layer-3 connection between the first device and the second device;

    based on the monitoring, establishing a layer-3 connection with the second device;

    transmitting information related to the functionality of the second device over a layer-3 connection to the second device;

    receiving from the second device a response to the layer-3 discovery protocol message; and

    based on information in the response, accessing the functionality of the second device over a layer-3 network.

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