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

A computer-readable storage medium, excluding signals, comprising instructions that, when executed, implement a method of monitoring a presence of at least one device, the method comprising:

• establishing a Layer 3 connection to at least one device;
• storing information about the at least one device obtained in conjunction with establishing the Layer 3 connection to the at least one device;
• terminating the Layer 3 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 Layer 2;
• and
• reestablishing the Layer 3 connection to the at least one device based on the determination.

A system, comprising:

• one or more processing units;
• and
• memory comprising instructions that when executed by at least one of the one or more processing units, perform a method comprising:
• 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 a 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.