--- service: i.root-servers.net start-period: '2014-03-09T00:00:00Z' end-period: '2014-03-10T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2289090860 dns-udp-queries-received-ipv6: 162947098 dns-tcp-queries-received-ipv4: 4861289 dns-tcp-queries-received-ipv6: 270572 dns-udp-responses-sent-ipv4: 2238568051 dns-udp-responses-sent-ipv6: 163041154 dns-tcp-responses-sent-ipv4: 4881351 dns-tcp-responses-sent-ipv6: 273510