Low Latency Ethernet 10G MAC Intel® FPGA IP User Guide

ID 683426
Date 3/01/2022
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4.10.4.3. PTP Packet over UDP/IPv6

The following figures show the structure and format of the PTP packet transported over the UDP/IPv6 protocol. Checksum calculation is mandatory for the UDP/IPv6 protocol. You must extend 2 bytes at the end of the UDP payload of the PTP packet. The MAC function modifies the extended bytes to ensure that the UDP checksum remains uncompromised.

Figure 35. PTP packet within UDP over IPv6 over Ethernet Frame
Figure 36. PTP Packet Format over UDP/IPv6