--- service: d.root-servers.net start-period: '2016-03-17T00:00:00Z' end-period: '2016-03-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4340613261 dns-udp-queries-received-ipv6: 531369134 dns-tcp-queries-received-ipv4: 28088605 dns-tcp-queries-received-ipv6: 1322310 dns-udp-responses-sent-ipv4: 4323448418 dns-udp-responses-sent-ipv6: 531060434 dns-tcp-responses-sent-ipv4: 28079921 dns-tcp-responses-sent-ipv6: 1322279