--- service: i.root-servers.net start-period: '2014-06-10T10:00:43Z' end-period: '2014-06-11T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1349565627 dns-udp-queries-received-ipv6: 125306994 dns-tcp-queries-received-ipv4: 2932550 dns-tcp-queries-received-ipv6: 124456 dns-udp-responses-sent-ipv4: 1322942337 dns-udp-responses-sent-ipv6: 127539745 dns-tcp-responses-sent-ipv4: 3069039 dns-tcp-responses-sent-ipv6: 125214