--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4932530207 dns-udp-queries-received-ipv6: 995179579 dns-tcp-queries-received-ipv4: 527325866 dns-tcp-queries-received-ipv6: 131407796 dns-udp-responses-sent-ipv4: 3897092326 dns-udp-responses-sent-ipv6: 889935115 dns-tcp-responses-sent-ipv4: 400671071 dns-tcp-responses-sent-ipv6: 119885441