--- service: i.root-servers.net start-period: '2016-05-29T00:00:00Z' end-period: '2016-05-30T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5930080668 dns-udp-queries-received-ipv6: 452166931 dns-tcp-queries-received-ipv4: 28791989 dns-tcp-queries-received-ipv6: 741432 dns-udp-responses-sent-ipv4: 5894995185 dns-udp-responses-sent-ipv6: 460699343 dns-tcp-responses-sent-ipv4: 29006735 dns-tcp-responses-sent-ipv6: 745395