--- service: i.root-servers.net start-period: '2014-02-04T00:00:00Z' end-period: '2014-02-05T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2476647773 dns-udp-queries-received-ipv6: 165723818 dns-tcp-queries-received-ipv4: 5000382 dns-tcp-queries-received-ipv6: 257190 dns-udp-responses-sent-ipv4: 2421520745 dns-udp-responses-sent-ipv6: 165476040 dns-tcp-responses-sent-ipv4: 5023686 dns-tcp-responses-sent-ipv6: 260647