--- service: i.root-servers.net start-period: '2014-06-25T00:00:00Z' end-period: '2014-06-26T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2957745790 dns-udp-queries-received-ipv6: 254993838 dns-tcp-queries-received-ipv4: 6801843 dns-tcp-queries-received-ipv6: 260555 dns-udp-responses-sent-ipv4: 2899819399 dns-udp-responses-sent-ipv6: 258060594 dns-tcp-responses-sent-ipv4: 7054756 dns-tcp-responses-sent-ipv6: 264039