Signal fingerprinting for authentication of communicating devices

A device comprising:

• a processor;
• and
• a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
• accessing a profile including an expected fingerprint of expected parameters for reflected signals associated with a transmission along a wired network path;
• comparing a fingerprint with the expected fingerprint, wherein the fingerprint is generated from parameters measured from a reflected signal;
• and
• determining a device topology along at least a portion of the wired network path according to the comparing.

A machine-readable storage device comprising instructions, which when executed by a processor cause the processor to perform operations comprising:

• accessing a profile including an expected fingerprint of expected parameters for received signals associated with a network path comprising a wired connection between network devices;
• comparing a fingerprint with the expected fingerprint, wherein the fingerprint is generated from parameters measured from a signal;
• and
• authenticating a network device along the network path associated with transmitting of the signal according to the comparing.