--- service: i.root-servers.net start-period: '2015-02-28T00:00:00Z' end-period: '2015-03-01T00:00:10Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2961117525 dns-udp-queries-received-ipv6: 237745659 dns-tcp-queries-received-ipv4: 6888579 dns-tcp-queries-received-ipv6: 203477 dns-udp-responses-sent-ipv4: 2916380676 dns-udp-responses-sent-ipv6: 237724982 dns-tcp-responses-sent-ipv4: 6919141 dns-tcp-responses-sent-ipv6: 209676