--- version: rssac002v3 service: i.root-servers.net start-period: '2022-01-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6103157500 dns-udp-queries-received-ipv6: 1540641631 dns-tcp-queries-received-ipv4: 567940080 dns-tcp-queries-received-ipv6: 66824131 dns-udp-responses-sent-ipv4: 5343808264 dns-udp-responses-sent-ipv6: 1456894934 dns-tcp-responses-sent-ipv4: 570374966 dns-tcp-responses-sent-ipv6: 50896375