--- service: h.root-servers.net metric: traffic-volume start-period: '2015-09-14T00:00:00Z' end-period: '2015-09-14T23:59:59Z' dns-udp-queries-received-ipv4: 2342706691 dns-udp-queries-received-ipv6: 173846277 dns-tcp-queries-received-ipv4: 238368 dns-tcp-queries-received-ipv6: 306733 dns-udp-responses-sent-ipv4: 2060322890 dns-udp-responses-sent-ipv6: 173604144 dns-tcp-responses-sent-ipv4: 128705 dns-tcp-responses-sent-ipv6: 279302