--- service: j.root-servers.net start-period: '2014-02-18T00:00:00Z' end-period: '2014-02-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2910423807 dns-udp-queries-received-ipv6: 213951917 dns-tcp-queries-received-ipv4: 25778502 dns-tcp-queries-received-ipv6: 4979376 dns-udp-responses-sent-ipv4: 2878453951 dns-udp-responses-sent-ipv6: 213804885 dns-tcp-responses-sent-ipv4: 21608250 dns-tcp-responses-sent-ipv6: 196