--- service: i.root-servers.net start-period: '2016-03-01T00:00:00Z' end-period: '2016-03-02T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5506484676 dns-udp-queries-received-ipv6: 447689256 dns-tcp-queries-received-ipv4: 14809617 dns-tcp-queries-received-ipv6: 1251329 dns-udp-responses-sent-ipv4: 5420939359 dns-udp-responses-sent-ipv6: 447235025 dns-tcp-responses-sent-ipv4: 14660253 dns-tcp-responses-sent-ipv6: 1252504