--- service: i.root-servers.net start-period: '2014-04-07T00:00:00Z' end-period: '2014-04-08T00:00:17Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2896673541 dns-udp-queries-received-ipv6: 184004413 dns-tcp-queries-received-ipv4: 5805957 dns-tcp-queries-received-ipv6: 270224 dns-udp-responses-sent-ipv4: 2836416580 dns-udp-responses-sent-ipv6: 184320698 dns-tcp-responses-sent-ipv4: 5799140 dns-tcp-responses-sent-ipv6: 270487