--- service: i.root-servers.net start-period: '2014-08-13T00:00:00Z' end-period: '2014-08-14T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2994576987 dns-udp-queries-received-ipv6: 212211550 dns-tcp-queries-received-ipv4: 7390184 dns-tcp-queries-received-ipv6: 269281 dns-udp-responses-sent-ipv4: 2942253660 dns-udp-responses-sent-ipv6: 212015436 dns-tcp-responses-sent-ipv4: 6737599 dns-tcp-responses-sent-ipv6: 272781