--- service: i.root-servers.net start-period: '2014-06-08T00:00:00Z' end-period: '2014-06-09T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2227188471 dns-udp-queries-received-ipv6: 223152284 dns-tcp-queries-received-ipv4: 5828846 dns-tcp-queries-received-ipv6: 223936 dns-udp-responses-sent-ipv4: 2176022891 dns-udp-responses-sent-ipv6: 222921246 dns-tcp-responses-sent-ipv4: 6049147 dns-tcp-responses-sent-ipv6: 227318