--- service: i.root-servers.net start-period: '2013-10-02T00:00:00Z' end-period: '2013-10-03T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2282230084 dns-udp-queries-received-ipv6: 131242541 dns-tcp-queries-received-ipv4: 5267668 dns-tcp-queries-received-ipv6: 131976 dns-udp-responses-sent-ipv4: 2359340702 dns-udp-responses-sent-ipv6: 138776289 dns-tcp-responses-sent-ipv4: 5318903 dns-tcp-responses-sent-ipv6: 153133