--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4522229929 dns-udp-queries-received-ipv6: 955242916 dns-tcp-queries-received-ipv4: 529110041 dns-tcp-queries-received-ipv6: 91842689 dns-udp-responses-sent-ipv4: 3828976533 dns-udp-responses-sent-ipv6: 953552141 dns-tcp-responses-sent-ipv4: 467268900 dns-tcp-responses-sent-ipv6: 92706870