--- service: i.root-servers.net start-period: '2014-06-14T00:00:00Z' end-period: '2014-06-15T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2130853703 dns-udp-queries-received-ipv6: 215753439 dns-tcp-queries-received-ipv4: 5847427 dns-tcp-queries-received-ipv6: 239523 dns-udp-responses-sent-ipv4: 2086472388 dns-udp-responses-sent-ipv6: 217153218 dns-tcp-responses-sent-ipv4: 6066829 dns-tcp-responses-sent-ipv6: 241494