--- service: i.root-servers.net start-period: '2013-05-10T00:00:00Z' end-period: '2013-05-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2118375196 dns-udp-queries-received-ipv6: 103623051 dns-tcp-queries-received-ipv4: 3056152 dns-tcp-queries-received-ipv6: 114008 dns-udp-responses-sent-ipv4: 2130407241 dns-udp-responses-sent-ipv6: 111533425 dns-tcp-responses-sent-ipv4: 3190502 dns-tcp-responses-sent-ipv6: 114433