--- service: i.root-servers.net start-period: '2014-09-03T00:00:00Z' end-period: '2014-09-04T00:00:08Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5327212432 dns-udp-queries-received-ipv6: 300605049 dns-tcp-queries-received-ipv4: 15628002 dns-tcp-queries-received-ipv6: 393553 dns-udp-responses-sent-ipv4: 5270824966 dns-udp-responses-sent-ipv6: 300583281 dns-tcp-responses-sent-ipv4: 14650366 dns-tcp-responses-sent-ipv6: 388168