--- service: i.root-servers.net start-period: '2014-05-16T00:00:00Z' end-period: '2014-05-17T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2835019355 dns-udp-queries-received-ipv6: 231512218 dns-tcp-queries-received-ipv4: 6784509 dns-tcp-queries-received-ipv6: 241586 dns-udp-responses-sent-ipv4: 2780788804 dns-udp-responses-sent-ipv6: 235244399 dns-tcp-responses-sent-ipv4: 6829715 dns-tcp-responses-sent-ipv6: 244907