What does protocol data unit actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Protocol data unit One 'Protocol data unit' story August 2012 See All Stories iOS iOS Devices iPhone Apple News iMessage Apple responds to SMS vulnerability by reminding us that iMessage works ...

Thanks to spanning tree protocol, switched network environments are capable of connecting bridges and switches with multiple paths for data transmission.

In networking and communications, the formats, codes and procedures for transmitting a unit of data (frame, packet) from one node to another. Known as a "layer 2 protocol," the data link protocol ...