--- service: i.root-servers.net start-period: '2014-08-16T00:00:00Z' end-period: '2014-08-17T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2664715096 dns-udp-queries-received-ipv6: 198428411 dns-tcp-queries-received-ipv4: 7198456 dns-tcp-queries-received-ipv6: 241292 dns-udp-responses-sent-ipv4: 2617525713 dns-udp-responses-sent-ipv6: 198433017 dns-tcp-responses-sent-ipv4: 6648079 dns-tcp-responses-sent-ipv6: 244234