Abstract: Various embodiments relate to detecting collisions on a communication network. A method may include transmitting a first signal to a shared bus. The method may also include observing a second signal at the shared bus during the transmitting. Further, the method may include detecting a collision on the shared bus in response to an amplitude of the second signal being one of greater than a first threshold and less than a second threshold.

Abstract: Disclosed embodiments relate, generally, to improved data reception handling at a physical layer (PHY). Some embodiments relate to end of line systems that include legacy media access control (MAC) and PHY that implement improved data reception handling disclosed herein. The improved data reception handling improve the operation of the end of line systems, and the MAC more specifically, and in some cases to comply with media access tuning protocols implemented at the physical layer.

Abstract: Various embodiments relate to wired local area networks. A method may include detecting, at a node in a wired local area network at least one event. A physical layer device of the network node is configured to implement a physical level collision avoidance (PLCA) sublayer. The at least one event may include at least one of an amount of data stored in a first-in-first-out (FIFO) buffer of the node being at least a threshold amount, and a received packet being a precision time protocol (PTP) packet incurring variable delay. The method may further include emulating a collision at the node in response to the at least one detected event.