--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4561222159 dns-udp-queries-received-ipv6: 832387760 dns-tcp-queries-received-ipv4: 484278990 dns-tcp-queries-received-ipv6: 104311097 dns-udp-responses-sent-ipv4: 3964508868 dns-udp-responses-sent-ipv6: 845099596 dns-tcp-responses-sent-ipv4: 429183106 dns-tcp-responses-sent-ipv6: 101588839