--- service: i.root-servers.net start-period: '2014-05-08T00:00:00Z' end-period: '2014-05-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3751065334 dns-udp-queries-received-ipv6: 220033716 dns-tcp-queries-received-ipv4: 8970084 dns-tcp-queries-received-ipv6: 315865 dns-udp-responses-sent-ipv4: 3695995411 dns-udp-responses-sent-ipv6: 223086769 dns-tcp-responses-sent-ipv4: 9035115 dns-tcp-responses-sent-ipv6: 310511