--- service: i.root-servers.net start-period: '2014-10-12T00:00:00Z' end-period: '2014-10-13T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2584767759 dns-udp-queries-received-ipv6: 207731093 dns-tcp-queries-received-ipv4: 6674380 dns-tcp-queries-received-ipv6: 207285 dns-udp-responses-sent-ipv4: 2535113282 dns-udp-responses-sent-ipv6: 210578287 dns-tcp-responses-sent-ipv4: 6759016 dns-tcp-responses-sent-ipv6: 207805