--- service: i.root-servers.net start-period: '2015-10-01T00:00:00Z' end-period: '2015-10-02T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4262482019 dns-udp-queries-received-ipv6: 318057078 dns-tcp-queries-received-ipv4: 28541272 dns-tcp-queries-received-ipv6: 480007 dns-udp-responses-sent-ipv4: 4191330475 dns-udp-responses-sent-ipv6: 316660066 dns-tcp-responses-sent-ipv4: 28506715 dns-tcp-responses-sent-ipv6: 482306