--- version: rssac002v3 service: i.root-servers.net start-period: '2021-09-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5081384747 dns-udp-queries-received-ipv6: 1254736325 dns-tcp-queries-received-ipv4: 531599242 dns-tcp-queries-received-ipv6: 148471042 dns-udp-responses-sent-ipv4: 4566255617 dns-udp-responses-sent-ipv6: 1119744258 dns-tcp-responses-sent-ipv4: 517923908 dns-tcp-responses-sent-ipv6: 130680378