--- service: i.root-servers.net start-period: '2014-02-12T00:00:00Z' end-period: '2014-02-13T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2598971072 dns-udp-queries-received-ipv6: 170829633 dns-tcp-queries-received-ipv4: 5357730 dns-tcp-queries-received-ipv6: 324939 dns-udp-responses-sent-ipv4: 2539483366 dns-udp-responses-sent-ipv6: 170926581 dns-tcp-responses-sent-ipv4: 5396738 dns-tcp-responses-sent-ipv6: 324867