--- service: i.root-servers.net start-period: '2014-02-28T00:00:00Z' end-period: '2014-03-01T00:00:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2724416324 dns-udp-queries-received-ipv6: 178821328 dns-tcp-queries-received-ipv4: 5330950 dns-tcp-queries-received-ipv6: 282275 dns-udp-responses-sent-ipv4: 2663659047 dns-udp-responses-sent-ipv6: 178960944 dns-tcp-responses-sent-ipv4: 5335832 dns-tcp-responses-sent-ipv6: 285033