--- version: rssac002v3 service: i.root-servers.net start-period: '2021-05-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5507490828 dns-udp-queries-received-ipv6: 966107609 dns-tcp-queries-received-ipv4: 425924284 dns-tcp-queries-received-ipv6: 109257438 dns-udp-responses-sent-ipv4: 4467142450 dns-udp-responses-sent-ipv6: 932163992 dns-tcp-responses-sent-ipv4: 366860952 dns-tcp-responses-sent-ipv6: 103687763