--- service: i.root-servers.net start-period: '2014-12-01T00:00:00Z' end-period: '2014-12-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3366164328 dns-udp-queries-received-ipv6: 227617841 dns-tcp-queries-received-ipv4: 6612656 dns-tcp-queries-received-ipv6: 186479 dns-udp-responses-sent-ipv4: 3317617956 dns-udp-responses-sent-ipv6: 227545916 dns-tcp-responses-sent-ipv4: 6619758 dns-tcp-responses-sent-ipv6: 184468