--- service: i.root-servers.net start-period: '2015-10-29T00:00:00Z' end-period: '2015-10-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4257549458 dns-udp-queries-received-ipv6: 320425201 dns-tcp-queries-received-ipv4: 22440190 dns-tcp-queries-received-ipv6: 584724 dns-udp-responses-sent-ipv4: 4207513232 dns-udp-responses-sent-ipv6: 326315356 dns-tcp-responses-sent-ipv4: 22459966 dns-tcp-responses-sent-ipv6: 590231