--- service: i.root-servers.net start-period: '2014-06-23T00:00:00Z' end-period: '2014-06-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2889192812 dns-udp-queries-received-ipv6: 225955467 dns-tcp-queries-received-ipv4: 7010945 dns-tcp-queries-received-ipv6: 261445 dns-udp-responses-sent-ipv4: 2834430255 dns-udp-responses-sent-ipv6: 228866623 dns-tcp-responses-sent-ipv4: 7242992 dns-tcp-responses-sent-ipv6: 264449