--- version: rssac002v3 service: i.root-servers.net start-period: '2021-06-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4781870268 dns-udp-queries-received-ipv6: 888807837 dns-tcp-queries-received-ipv4: 461694621 dns-tcp-queries-received-ipv6: 123819708 dns-udp-responses-sent-ipv4: 4164772152 dns-udp-responses-sent-ipv6: 888213859 dns-tcp-responses-sent-ipv4: 404770325 dns-tcp-responses-sent-ipv6: 109835506