Also, it has a simpler checksum to calculate and a far simpler header. The header is larger but has far less fields. This should make packet processing faster a

Also, it has a simpler checksum to calculate and a far simpler header. The header is larger but has far less fields. This should make packet processing faster aswell. Also, MTU path-discovery is a pretty big deal in terms of performance, as IPV6 does not allow packet fragmentation. Which should improve performance aswell.