--- service: i.root-servers.net start-period: '2014-07-31T00:00:00Z' end-period: '2014-08-01T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3096074289 dns-udp-queries-received-ipv6: 247211246 dns-tcp-queries-received-ipv4: 6559598 dns-tcp-queries-received-ipv6: 275461 dns-udp-responses-sent-ipv4: 3035942131 dns-udp-responses-sent-ipv6: 247133120 dns-tcp-responses-sent-ipv4: 6656955 dns-tcp-responses-sent-ipv6: 277561