--- service: i.root-servers.net start-period: '2014-09-25T00:00:00Z' end-period: '2014-09-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3227531353 dns-udp-queries-received-ipv6: 219139929 dns-tcp-queries-received-ipv4: 6680530 dns-tcp-queries-received-ipv6: 162851 dns-udp-responses-sent-ipv4: 3165312822 dns-udp-responses-sent-ipv6: 223232298 dns-tcp-responses-sent-ipv4: 6925371 dns-tcp-responses-sent-ipv6: 162399