--- service: i.root-servers.net start-period: '2014-04-23T00:00:00Z' end-period: '2014-04-24T00:00:17Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2914086690 dns-udp-queries-received-ipv6: 175591644 dns-tcp-queries-received-ipv4: 5784881 dns-tcp-queries-received-ipv6: 267701 dns-udp-responses-sent-ipv4: 2856183793 dns-udp-responses-sent-ipv6: 178413943 dns-tcp-responses-sent-ipv4: 5803368 dns-tcp-responses-sent-ipv6: 267994