--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4884837701 dns-udp-queries-received-ipv6: 939404525 dns-tcp-queries-received-ipv4: 466432267 dns-tcp-queries-received-ipv6: 122803359 dns-udp-responses-sent-ipv4: 4014394054 dns-udp-responses-sent-ipv6: 884046107 dns-tcp-responses-sent-ipv4: 355101275 dns-tcp-responses-sent-ipv6: 108549759