--- service: i.root-servers.net start-period: '2016-05-10T00:00:00Z' end-period: '2016-05-11T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5612592594 dns-udp-queries-received-ipv6: 436223339 dns-tcp-queries-received-ipv4: 39727863 dns-tcp-queries-received-ipv6: 903770 dns-udp-responses-sent-ipv4: 5490923227 dns-udp-responses-sent-ipv6: 441542227 dns-tcp-responses-sent-ipv4: 39395850 dns-tcp-responses-sent-ipv6: 907697