--- service: i.root-servers.net start-period: '2014-10-22T00:00:00Z' end-period: '2014-10-23T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3246487374 dns-udp-queries-received-ipv6: 223468423 dns-tcp-queries-received-ipv4: 7426157 dns-tcp-queries-received-ipv6: 169827 dns-udp-responses-sent-ipv4: 3191612129 dns-udp-responses-sent-ipv6: 227106661 dns-tcp-responses-sent-ipv4: 7550448 dns-tcp-responses-sent-ipv6: 170341