F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide

ID 741328
Date 6/26/2023
Document Table of Contents PTP Frame over UDP/IPv6

Checksum calculation is mandatory for the UDP/IPv6 protocol. You must extend 2 bytes at the end of the UDP payload of the PTP frame. The MAC function modifies the extended bytes to ensure that the UDP checksum remains uncompromised.
Figure 42. PTP Frame over UDP/IPv6

Note: For frames with VLAN or Stacked VLAN tag, add 4 or 8 octets offsets before the length/type field.

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