--- version: rssac002v3 service: i.root-servers.net start-period: '2021-01-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4734807338 dns-udp-queries-received-ipv6: 862634345 dns-tcp-queries-received-ipv4: 463063337 dns-tcp-queries-received-ipv6: 113874326 dns-udp-responses-sent-ipv4: 3754566063 dns-udp-responses-sent-ipv6: 790583410 dns-tcp-responses-sent-ipv4: 340773599 dns-tcp-responses-sent-ipv6: 102452245