--- version: rssac002v3 service: i.root-servers.net start-period: '2021-05-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4839409442 dns-udp-queries-received-ipv6: 805430686 dns-tcp-queries-received-ipv4: 456442653 dns-tcp-queries-received-ipv6: 109902282 dns-udp-responses-sent-ipv4: 4320060663 dns-udp-responses-sent-ipv6: 761083926 dns-tcp-responses-sent-ipv4: 399343494 dns-tcp-responses-sent-ipv6: 100546220