--- service: i.root-servers.net start-period: '2014-12-03T00:00:00Z' end-period: '2014-12-04T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3261578343 dns-udp-queries-received-ipv6: 289179737 dns-tcp-queries-received-ipv4: 6318670 dns-tcp-queries-received-ipv6: 318642 dns-udp-responses-sent-ipv4: 3210514834 dns-udp-responses-sent-ipv6: 289072358 dns-tcp-responses-sent-ipv4: 6305977 dns-tcp-responses-sent-ipv6: 297021