--- service: i.root-servers.net start-period: '2014-11-19T00:00:00Z' end-period: '2014-11-20T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3488202681 dns-udp-queries-received-ipv6: 231242148 dns-tcp-queries-received-ipv4: 6522432 dns-tcp-queries-received-ipv6: 215035 dns-udp-responses-sent-ipv4: 3435697653 dns-udp-responses-sent-ipv6: 231148205 dns-tcp-responses-sent-ipv4: 6649131 dns-tcp-responses-sent-ipv6: 215065