--- version: rssac002v3 service: i.root-servers.net start-period: '2021-12-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6424484209 dns-udp-queries-received-ipv6: 1543091977 dns-tcp-queries-received-ipv4: 619144985 dns-tcp-queries-received-ipv6: 74658457 dns-udp-responses-sent-ipv4: 5666056299 dns-udp-responses-sent-ipv6: 1447988234 dns-tcp-responses-sent-ipv4: 613576225 dns-tcp-responses-sent-ipv6: 59665840