--- version: rssac002v3 service: i.root-servers.net start-period: '2022-01-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7064010668 dns-udp-queries-received-ipv6: 1673233581 dns-tcp-queries-received-ipv4: 745172827 dns-tcp-queries-received-ipv6: 83632374 dns-udp-responses-sent-ipv4: 6115240140 dns-udp-responses-sent-ipv6: 1562715592 dns-tcp-responses-sent-ipv4: 750326946 dns-tcp-responses-sent-ipv6: 65373480