--- service: a.root-servers.net start-period: '2014-06-22T00:00:00Z' end-period: '2014-06-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1472890140 dns-udp-queries-received-ipv6: 103660245 dns-tcp-queries-received-ipv4: 8186140 dns-tcp-queries-received-ipv6: 725096 dns-udp-responses-sent-ipv4: 1472672471 dns-udp-responses-sent-ipv6: 103656523 dns-tcp-responses-sent-ipv4: 8144978 dns-tcp-responses-sent-ipv6: 485252