--- service: i.root-servers.net start-period: '2014-02-27T00:00:00Z' end-period: '2014-02-28T00:00:04Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2736200635 dns-udp-queries-received-ipv6: 181201102 dns-tcp-queries-received-ipv4: 5505331 dns-tcp-queries-received-ipv6: 267610 dns-udp-responses-sent-ipv4: 2674546407 dns-udp-responses-sent-ipv6: 181325892 dns-tcp-responses-sent-ipv4: 5533646 dns-tcp-responses-sent-ipv6: 271294