--- service: i.root-servers.net start-period: '2014-07-30T00:00:00Z' end-period: '2014-07-31T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3107412053 dns-udp-queries-received-ipv6: 246366180 dns-tcp-queries-received-ipv4: 6644493 dns-tcp-queries-received-ipv6: 268140 dns-udp-responses-sent-ipv4: 3049818015 dns-udp-responses-sent-ipv6: 246254706 dns-tcp-responses-sent-ipv4: 6789643 dns-tcp-responses-sent-ipv6: 270312