--- version: rssac002v3 service: i.root-servers.net start-period: '2021-12-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6169438794 dns-udp-queries-received-ipv6: 1462206525 dns-tcp-queries-received-ipv4: 605681238 dns-tcp-queries-received-ipv6: 68284079 dns-udp-responses-sent-ipv4: 5436653373 dns-udp-responses-sent-ipv6: 1356863997 dns-tcp-responses-sent-ipv4: 594563367 dns-tcp-responses-sent-ipv6: 52167356