--- service: i.root-servers.net start-period: '2014-08-09T00:00:00Z' end-period: '2014-08-10T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2856414554 dns-udp-queries-received-ipv6: 193147299 dns-tcp-queries-received-ipv4: 6497069 dns-tcp-queries-received-ipv6: 246482 dns-udp-responses-sent-ipv4: 2702152156 dns-udp-responses-sent-ipv6: 193516212 dns-tcp-responses-sent-ipv4: 5925205 dns-tcp-responses-sent-ipv6: 250050