--- service: i.root-servers.net start-period: '2014-02-09T00:00:00Z' end-period: '2014-02-10T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2264610889 dns-udp-queries-received-ipv6: 154189281 dns-tcp-queries-received-ipv4: 4803723 dns-tcp-queries-received-ipv6: 261498 dns-udp-responses-sent-ipv4: 2213348514 dns-udp-responses-sent-ipv6: 154282544 dns-tcp-responses-sent-ipv4: 4851620 dns-tcp-responses-sent-ipv6: 266206