--- service: i.root-servers.net start-period: '2015-07-17T00:00:00Z' end-period: '2015-07-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5008784033 dns-udp-queries-received-ipv6: 241029931 dns-tcp-queries-received-ipv4: 11169015 dns-tcp-queries-received-ipv6: 279976 dns-udp-responses-sent-ipv4: 4962215332 dns-udp-responses-sent-ipv6: 245427564 dns-tcp-responses-sent-ipv4: 11069088 dns-tcp-responses-sent-ipv6: 282880