--- service: i.root-servers.net start-period: '2014-08-12T00:00:00Z' end-period: '2014-08-13T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2948887644 dns-udp-queries-received-ipv6: 212914228 dns-tcp-queries-received-ipv4: 7087669 dns-tcp-queries-received-ipv6: 273918 dns-udp-responses-sent-ipv4: 2895393142 dns-udp-responses-sent-ipv6: 213321676 dns-tcp-responses-sent-ipv4: 6751612 dns-tcp-responses-sent-ipv6: 277868