--- service: i.root-servers.net start-period: '2015-11-04T00:00:00Z' end-period: '2015-11-05T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4531055978 dns-udp-queries-received-ipv6: 326469616 dns-tcp-queries-received-ipv4: 27082302 dns-tcp-queries-received-ipv6: 565933 dns-udp-responses-sent-ipv4: 4476940167 dns-udp-responses-sent-ipv6: 331965866 dns-tcp-responses-sent-ipv4: 27275040 dns-tcp-responses-sent-ipv6: 570679