--- service: i.root-servers.net start-period: '2014-06-26T00:00:00Z' end-period: '2014-06-27T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3050987153 dns-udp-queries-received-ipv6: 264099521 dns-tcp-queries-received-ipv4: 6748168 dns-tcp-queries-received-ipv6: 256458 dns-udp-responses-sent-ipv4: 2992670097 dns-udp-responses-sent-ipv6: 266782691 dns-tcp-responses-sent-ipv4: 6969221 dns-tcp-responses-sent-ipv6: 259890