--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4796087666 dns-udp-queries-received-ipv6: 1087370686 dns-tcp-queries-received-ipv4: 487129544 dns-tcp-queries-received-ipv6: 105113143 dns-udp-responses-sent-ipv4: 4253121522 dns-udp-responses-sent-ipv6: 1108216616 dns-tcp-responses-sent-ipv4: 415063612 dns-tcp-responses-sent-ipv6: 100770159