It’s still in violation of the IEEE802.3 standard, just not as badly. Ethernet frames are what hold packets. The frames exist to transport packets over the dark and dangerous physical layer.

The Tri-Speed MAC, however, always calculates CRC to check whether the frame was received error-free. On the transmit side, the Tx MAC is responsible for controlling access to the physical medium. The ...

The IP layer 3 breaks apart the data being transmitted into variable length packets, known as "Ethernet frames," up to 1,500 bytes long. Each frame has a header containing source and destination ...