--- service: i.root-servers.net start-period: '2014-02-08T00:00:00Z' end-period: '2014-02-09T00:00:17Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2910531175 dns-udp-queries-received-ipv6: 180530525 dns-tcp-queries-received-ipv4: 6082755 dns-tcp-queries-received-ipv6: 450113 dns-udp-responses-sent-ipv4: 2860160612 dns-udp-responses-sent-ipv6: 180655847 dns-tcp-responses-sent-ipv4: 6112577 dns-tcp-responses-sent-ipv6: 447091