--- version: rssac002v3 service: i.root-servers.net start-period: '2021-06-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5302428065 dns-udp-queries-received-ipv6: 961993853 dns-tcp-queries-received-ipv4: 500565189 dns-tcp-queries-received-ipv6: 113037934 dns-udp-responses-sent-ipv4: 4630401178 dns-udp-responses-sent-ipv6: 927486756 dns-tcp-responses-sent-ipv4: 418054182 dns-tcp-responses-sent-ipv6: 104480271