--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4884656471 dns-udp-queries-received-ipv6: 906786033 dns-tcp-queries-received-ipv4: 546980282 dns-tcp-queries-received-ipv6: 116022740 dns-udp-responses-sent-ipv4: 3806832286 dns-udp-responses-sent-ipv6: 796996758 dns-tcp-responses-sent-ipv4: 417127855 dns-tcp-responses-sent-ipv6: 105613035