--- service: i.root-servers.net start-period: '2014-08-11T00:00:00Z' end-period: '2014-08-12T00:00:10Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2929529606 dns-udp-queries-received-ipv6: 210387804 dns-tcp-queries-received-ipv4: 6925625 dns-tcp-queries-received-ipv6: 268454 dns-udp-responses-sent-ipv4: 2876036185 dns-udp-responses-sent-ipv6: 210792437 dns-tcp-responses-sent-ipv4: 6545592 dns-tcp-responses-sent-ipv6: 272599