--- service: i.root-servers.net start-period: '2014-08-27T00:00:00Z' end-period: '2014-08-28T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3004957539 dns-udp-queries-received-ipv6: 222272660 dns-tcp-queries-received-ipv4: 7599744 dns-tcp-queries-received-ipv6: 268863 dns-udp-responses-sent-ipv4: 2948333724 dns-udp-responses-sent-ipv6: 222263165 dns-tcp-responses-sent-ipv4: 7244592 dns-tcp-responses-sent-ipv6: 270557