--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4536919611 dns-udp-queries-received-ipv6: 609914274 dns-tcp-queries-received-ipv4: 79535895 dns-tcp-queries-received-ipv6: 12035530 dns-udp-responses-sent-ipv4: 4598921209 dns-udp-responses-sent-ipv6: 655349997 dns-tcp-responses-sent-ipv4: 79429695 dns-tcp-responses-sent-ipv6: 12042791