--- service: i.root-servers.net start-period: '2014-09-16T00:00:00Z' end-period: '2014-09-17T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3315132764 dns-udp-queries-received-ipv6: 223767169 dns-tcp-queries-received-ipv4: 7524042 dns-tcp-queries-received-ipv6: 261127 dns-udp-responses-sent-ipv4: 3251805525 dns-udp-responses-sent-ipv6: 228177461 dns-tcp-responses-sent-ipv4: 7161253 dns-tcp-responses-sent-ipv6: 262503