--- service: i.root-servers.net start-period: '2015-11-08T00:00:00Z' end-period: '2015-11-09T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4180945893 dns-udp-queries-received-ipv6: 301291683 dns-tcp-queries-received-ipv4: 30342164 dns-tcp-queries-received-ipv6: 458364 dns-udp-responses-sent-ipv4: 4130566380 dns-udp-responses-sent-ipv6: 306209405 dns-tcp-responses-sent-ipv4: 30458873 dns-tcp-responses-sent-ipv6: 462386