--- version: rssac002v3 service: i.root-servers.net start-period: '2021-05-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4884723234 dns-udp-queries-received-ipv6: 870426845 dns-tcp-queries-received-ipv4: 465383156 dns-tcp-queries-received-ipv6: 123321725 dns-udp-responses-sent-ipv4: 4302243162 dns-udp-responses-sent-ipv6: 806278710 dns-tcp-responses-sent-ipv4: 390301828 dns-tcp-responses-sent-ipv6: 106767222