--- service: i.root-servers.net start-period: '2013-06-30T00:00:00Z' end-period: '2013-07-01T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1727033110 dns-udp-queries-received-ipv6: 98749470 dns-tcp-queries-received-ipv4: 2728693 dns-tcp-queries-received-ipv6: 148211 dns-udp-responses-sent-ipv4: 1734937425 dns-udp-responses-sent-ipv6: 105362843 dns-tcp-responses-sent-ipv4: 2846514 dns-tcp-responses-sent-ipv6: 150665