--- service: i.root-servers.net start-period: '2014-07-25T00:00:00Z' end-period: '2014-07-26T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3025669492 dns-udp-queries-received-ipv6: 263991291 dns-tcp-queries-received-ipv4: 6592416 dns-tcp-queries-received-ipv6: 261725 dns-udp-responses-sent-ipv4: 2967202941 dns-udp-responses-sent-ipv6: 263724010 dns-tcp-responses-sent-ipv4: 6629876 dns-tcp-responses-sent-ipv6: 265776