--- service: i.root-servers.net start-period: '2014-08-23T00:00:00Z' end-period: '2014-08-24T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2561684638 dns-udp-queries-received-ipv6: 202710466 dns-tcp-queries-received-ipv4: 6645463 dns-tcp-queries-received-ipv6: 251277 dns-udp-responses-sent-ipv4: 2514848963 dns-udp-responses-sent-ipv6: 203036423 dns-tcp-responses-sent-ipv4: 6256357 dns-tcp-responses-sent-ipv6: 252527