--- service: i.root-servers.net start-period: '2014-03-22T00:00:00Z' end-period: '2014-03-23T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2359246184 dns-udp-queries-received-ipv6: 172916633 dns-tcp-queries-received-ipv4: 5510845 dns-tcp-queries-received-ipv6: 282837 dns-udp-responses-sent-ipv4: 2304236149 dns-udp-responses-sent-ipv6: 173270620 dns-tcp-responses-sent-ipv4: 5512045 dns-tcp-responses-sent-ipv6: 284654