--- service: i.root-servers.net start-period: '2014-05-06T00:00:00Z' end-period: '2014-05-07T00:00:07Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2725951274 dns-udp-queries-received-ipv6: 183720727 dns-tcp-queries-received-ipv4: 6342901 dns-tcp-queries-received-ipv6: 242936 dns-udp-responses-sent-ipv4: 2672282328 dns-udp-responses-sent-ipv6: 186200720 dns-tcp-responses-sent-ipv4: 6385808 dns-tcp-responses-sent-ipv6: 245234