--- service: i.root-servers.net start-period: '2014-08-04T00:00:00Z' end-period: '2014-08-05T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3184156349 dns-udp-queries-received-ipv6: 227777378 dns-tcp-queries-received-ipv4: 6247236 dns-tcp-queries-received-ipv6: 280250 dns-udp-responses-sent-ipv4: 3122759645 dns-udp-responses-sent-ipv6: 228190047 dns-tcp-responses-sent-ipv4: 6389391 dns-tcp-responses-sent-ipv6: 282327