--- service: i.root-servers.net start-period: '2014-06-24T00:00:00Z' end-period: '2014-06-25T00:00:04Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3746394728 dns-udp-queries-received-ipv6: 273611406 dns-tcp-queries-received-ipv4: 9363441 dns-tcp-queries-received-ipv6: 377081 dns-udp-responses-sent-ipv4: 3690356549 dns-udp-responses-sent-ipv6: 276365242 dns-tcp-responses-sent-ipv4: 9530441 dns-tcp-responses-sent-ipv6: 373273