--- service: i.root-servers.net start-period: '2013-10-01T00:00:00Z' end-period: '2013-10-02T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2229154082 dns-udp-queries-received-ipv6: 133237664 dns-tcp-queries-received-ipv4: 5557249 dns-tcp-queries-received-ipv6: 131808 dns-udp-responses-sent-ipv4: 2314078073 dns-udp-responses-sent-ipv6: 141747750 dns-tcp-responses-sent-ipv4: 5599660 dns-tcp-responses-sent-ipv6: 153383