--- service: i.root-servers.net start-period: '2014-07-13T00:00:00Z' end-period: '2014-07-14T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2845428612 dns-udp-queries-received-ipv6: 211106951 dns-tcp-queries-received-ipv4: 5917712 dns-tcp-queries-received-ipv6: 247057 dns-udp-responses-sent-ipv4: 2797300865 dns-udp-responses-sent-ipv6: 210927348 dns-tcp-responses-sent-ipv4: 6140060 dns-tcp-responses-sent-ipv6: 251491