Ethernet and Token Ring are examples of this layer. Many people neither use the term PDU nor the term frame, but call every unit of data traveling over a network a "packet." See OSI model and packet.

The maximum transmission unit (MTU) for a protocol sets the top limit on how big its packets can be. However, the network devices they pass through, encapsulation, and other factors can complicate ...

As the important information travels encrypted within the communication's protocol data unit (PDU), all of the intermediate nodes that are involved in the communication will interact with the packet.

SPP-PDU (Protocol Data Unit) Processors: add packet processing support for specific high bandwidth security protocols, such as SSL/TLS/DTLS, IPsec, MACsec, 3GPP/LTE-A, WiMax, PKI or SRTP. SPP-MPDU ...

When the aggregated MPDU (MAC Protocol Data Unit) number with 1500Byte MPDU is larger than 42, around 280Mbps throughput performance could be possible with 433Mbps PHY rate. Although this 64% MAC/PHY ...