--- service: i.root-servers.net start-period: '2014-04-30T00:00:00Z' end-period: '2014-05-01T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2889720899 dns-udp-queries-received-ipv6: 186473041 dns-tcp-queries-received-ipv4: 5793381 dns-tcp-queries-received-ipv6: 271450 dns-udp-responses-sent-ipv4: 2829408302 dns-udp-responses-sent-ipv6: 189594447 dns-tcp-responses-sent-ipv4: 5804458 dns-tcp-responses-sent-ipv6: 270394