--- service: i.root-servers.net start-period: '2014-08-29T00:00:00Z' end-period: '2014-08-30T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2820165965 dns-udp-queries-received-ipv6: 212679692 dns-tcp-queries-received-ipv4: 7382599 dns-tcp-queries-received-ipv6: 254893 dns-udp-responses-sent-ipv4: 2765181174 dns-udp-responses-sent-ipv6: 216810283 dns-tcp-responses-sent-ipv4: 7100416 dns-tcp-responses-sent-ipv6: 255985