--- version: rssac002v3 service: i.root-servers.net start-period: '2021-10-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5052037304 dns-udp-queries-received-ipv6: 1119332137 dns-tcp-queries-received-ipv4: 436229705 dns-tcp-queries-received-ipv6: 132966296 dns-udp-responses-sent-ipv4: 4352675318 dns-udp-responses-sent-ipv6: 966716975 dns-tcp-responses-sent-ipv4: 411477753 dns-tcp-responses-sent-ipv6: 115060000