Array of packet fragment descriptors. The first byte of the media header is the first byte of the first fragment.
Number of packet fragment descriptors.
Length of the media header in bytes.
Length of packet data in bytes (not including the media header).
Protocol type. This will be copied into the media header without doing byte swapping. Protocol type numbers can be obtained from the Assigned Numbers RFC 1700.
Source and destination MAC addresses. These will be copied into the media header without doing byte swapping.
Reserved, must be set to zero.