--- service: i.root-servers.net start-period: '2014-02-14T00:00:00Z' end-period: '2014-02-15T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2572425995 dns-udp-queries-received-ipv6: 178438094 dns-tcp-queries-received-ipv4: 5263740 dns-tcp-queries-received-ipv6: 316468 dns-udp-responses-sent-ipv4: 2513965650 dns-udp-responses-sent-ipv6: 178523440 dns-tcp-responses-sent-ipv4: 5290721 dns-tcp-responses-sent-ipv6: 316118