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Event-driven detection of device presence for layer 3 services using layer 2 discovery information

  • US 8,799,459 B2
  • Filed: 09/12/2011
  • Issued: 08/05/2014
  • Est. Priority Date: 09/12/2011
  • Status: Active Grant
First Claim
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1. A method of operating a computer comprising at least one processing unit, the method comprising, with the at least one processing unit:

  • establishing an Internet Protocol (IP) layer connection to at least one device;

    storing information about the at least one device obtained in conjunction with establishing the IP layer connection to the at least one device;

    terminating the IP layer connection to the at least one device; and

    in response to receiving an indication of an attempt to use the at least one device;

    determining presence of the at least one device at a non-IP layer; and

    reestablishing the IP layer connection to the at least one device when the at least one device is determined to be present at the non-IP layer.

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