--- service: i.root-servers.net start-period: '2013-12-05T00:00:00Z' end-period: '2013-12-06T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2400406232 dns-udp-queries-received-ipv6: 137745316 dns-tcp-queries-received-ipv4: 5067140 dns-tcp-queries-received-ipv6: 247187 dns-udp-responses-sent-ipv4: 2430318658 dns-udp-responses-sent-ipv6: 147317723 dns-tcp-responses-sent-ipv4: 5097971 dns-tcp-responses-sent-ipv6: 259575