--- service: i.root-servers.net start-period: '2014-10-04T00:00:00Z' end-period: '2014-10-05T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2685191928 dns-udp-queries-received-ipv6: 197029998 dns-tcp-queries-received-ipv4: 5904987 dns-tcp-queries-received-ipv6: 233872 dns-udp-responses-sent-ipv4: 2633503138 dns-udp-responses-sent-ipv6: 199828699 dns-tcp-responses-sent-ipv4: 5965317 dns-tcp-responses-sent-ipv6: 235833