--- service: i.root-servers.net start-period: '2014-07-09T09:31:20Z' end-period: '2014-07-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1674402407 dns-udp-queries-received-ipv6: 112201823 dns-tcp-queries-received-ipv4: 4669358 dns-tcp-queries-received-ipv6: 246979 dns-udp-responses-sent-ipv4: 1647798351 dns-udp-responses-sent-ipv6: 111790941 dns-tcp-responses-sent-ipv4: 4736131 dns-tcp-responses-sent-ipv6: 247771