--- service: i.root-servers.net start-period: '2014-10-03T00:00:00Z' end-period: '2014-10-04T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3360244222 dns-udp-queries-received-ipv6: 221424509 dns-tcp-queries-received-ipv4: 7996653 dns-tcp-queries-received-ipv6: 253255 dns-udp-responses-sent-ipv4: 3302594688 dns-udp-responses-sent-ipv6: 224780701 dns-tcp-responses-sent-ipv4: 8067754 dns-tcp-responses-sent-ipv6: 249879