--- service: j.root-servers.net start-period: '2014-02-13T00:00:00Z' end-period: '2014-02-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2809346570 dns-udp-queries-received-ipv6: 199350493 dns-tcp-queries-received-ipv4: 24361866 dns-tcp-queries-received-ipv6: 4261979 dns-udp-responses-sent-ipv4: 2798968543 dns-udp-responses-sent-ipv6: 199297915 dns-tcp-responses-sent-ipv4: 25665389 dns-tcp-responses-sent-ipv6: 202