--- service: i.root-servers.net start-period: '2014-09-01T00:00:00Z' end-period: '2014-09-02T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3323053080 dns-udp-queries-received-ipv6: 236092900 dns-tcp-queries-received-ipv4: 10506685 dns-tcp-queries-received-ipv6: 279623 dns-udp-responses-sent-ipv4: 3268029306 dns-udp-responses-sent-ipv6: 240217749 dns-tcp-responses-sent-ipv4: 10031540 dns-tcp-responses-sent-ipv6: 280023