--- service: i.root-servers.net start-period: '2014-02-02T00:00:00Z' end-period: '2014-02-03T00:00:08Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2009510429 dns-udp-queries-received-ipv6: 151475703 dns-tcp-queries-received-ipv4: 4861782 dns-tcp-queries-received-ipv6: 256008 dns-udp-responses-sent-ipv4: 1965418390 dns-udp-responses-sent-ipv6: 151175322 dns-tcp-responses-sent-ipv4: 4849660 dns-tcp-responses-sent-ipv6: 259734