--- service: i.root-servers.net start-period: '2014-06-03T00:00:00Z' end-period: '2014-06-04T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2867925015 dns-udp-queries-received-ipv6: 251019748 dns-tcp-queries-received-ipv4: 6436561 dns-tcp-queries-received-ipv6: 249309 dns-udp-responses-sent-ipv4: 2805427697 dns-udp-responses-sent-ipv6: 250637724 dns-tcp-responses-sent-ipv4: 6625810 dns-tcp-responses-sent-ipv6: 251680