--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4800860409 dns-udp-queries-received-ipv6: 839072534 dns-tcp-queries-received-ipv4: 104204650 dns-tcp-queries-received-ipv6: 15671610 dns-udp-responses-sent-ipv4: 4848698642 dns-udp-responses-sent-ipv6: 844000509 dns-tcp-responses-sent-ipv4: 99121874 dns-tcp-responses-sent-ipv6: 15652424