--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5211522950 dns-udp-queries-received-ipv6: 958535747 dns-tcp-queries-received-ipv4: 507686833 dns-tcp-queries-received-ipv6: 136194178 dns-udp-responses-sent-ipv4: 4156223393 dns-udp-responses-sent-ipv6: 876604373 dns-tcp-responses-sent-ipv4: 368657003 dns-tcp-responses-sent-ipv6: 123779104