The IPv6 Task Force are working groups that coordinate actions to achieve IPv6 development inside the region or country where it is established. In the world there are more than 35 IPv6 Task Forces created for this purpose.
The field ‘Total Lengh’which is part of the IPv4 header, is not found in the IPv6 header. Its function was to count the size of the packet payload plus the size of a variable lenght header. As the IPv6 header has a fixed size, the presence of this field is unnecessary.