--- service: i.root-servers.net start-period: '2016-02-23T00:00:00Z' end-period: '2016-02-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5031261351 dns-udp-queries-received-ipv6: 417134017 dns-tcp-queries-received-ipv4: 15039581 dns-tcp-queries-received-ipv6: 1246938 dns-udp-responses-sent-ipv4: 4956802800 dns-udp-responses-sent-ipv6: 416660749 dns-tcp-responses-sent-ipv4: 14871180 dns-tcp-responses-sent-ipv6: 1248014