--- service: i.root-servers.net start-period: '2014-03-01T00:00:00Z' end-period: '2014-03-02T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2390273246 dns-udp-queries-received-ipv6: 160907153 dns-tcp-queries-received-ipv4: 4938884 dns-tcp-queries-received-ipv6: 284256 dns-udp-responses-sent-ipv4: 2343300958 dns-udp-responses-sent-ipv6: 161027344 dns-tcp-responses-sent-ipv4: 4984497 dns-tcp-responses-sent-ipv6: 285125