--- service: i.root-servers.net start-period: '2014-12-11T00:00:00Z' end-period: '2014-12-12T00:00:07Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3234845323 dns-udp-queries-received-ipv6: 243512575 dns-tcp-queries-received-ipv4: 6496576 dns-tcp-queries-received-ipv6: 176006 dns-udp-responses-sent-ipv4: 3211209686 dns-udp-responses-sent-ipv6: 244563461 dns-tcp-responses-sent-ipv4: 6543557 dns-tcp-responses-sent-ipv6: 178242