--- service: i.root-servers.net start-period: '2015-08-03T00:00:00Z' end-period: '2015-08-04T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5187955367 dns-udp-queries-received-ipv6: 266676339 dns-tcp-queries-received-ipv4: 13058013 dns-tcp-queries-received-ipv6: 288525 dns-udp-responses-sent-ipv4: 5145395879 dns-udp-responses-sent-ipv6: 268914249 dns-tcp-responses-sent-ipv4: 12956369 dns-tcp-responses-sent-ipv6: 296188