--- service: i.root-servers.net start-period: '2014-07-01T00:00:00Z' end-period: '2014-07-02T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3100653320 dns-udp-queries-received-ipv6: 203730647 dns-tcp-queries-received-ipv4: 6703441 dns-tcp-queries-received-ipv6: 278941 dns-udp-responses-sent-ipv4: 3046669697 dns-udp-responses-sent-ipv6: 205882124 dns-tcp-responses-sent-ipv4: 6902759 dns-tcp-responses-sent-ipv6: 281188