--- service: i.root-servers.net start-period: '2014-06-27T00:00:00Z' end-period: '2014-06-28T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3067213550 dns-udp-queries-received-ipv6: 235709060 dns-tcp-queries-received-ipv4: 6513018 dns-tcp-queries-received-ipv6: 253676 dns-udp-responses-sent-ipv4: 3012493870 dns-udp-responses-sent-ipv6: 238022220 dns-tcp-responses-sent-ipv4: 6694290 dns-tcp-responses-sent-ipv6: 256034