--- service: i.root-servers.net start-period: '2014-07-26T00:00:00Z' end-period: '2014-07-27T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2983132970 dns-udp-queries-received-ipv6: 235413979 dns-tcp-queries-received-ipv4: 6034231 dns-tcp-queries-received-ipv6: 238002 dns-udp-responses-sent-ipv4: 2912465266 dns-udp-responses-sent-ipv6: 235248159 dns-tcp-responses-sent-ipv4: 6038484 dns-tcp-responses-sent-ipv6: 242532