--- service: i.root-servers.net start-period: '2014-08-06T00:00:00Z' end-period: '2014-08-07T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3166359670 dns-udp-queries-received-ipv6: 225191949 dns-tcp-queries-received-ipv4: 6915269 dns-tcp-queries-received-ipv6: 265098 dns-udp-responses-sent-ipv4: 3108466186 dns-udp-responses-sent-ipv6: 225603531 dns-tcp-responses-sent-ipv4: 6978757 dns-tcp-responses-sent-ipv6: 267148