--- service: i.root-servers.net start-period: '2014-08-24T00:00:00Z' end-period: '2014-08-25T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2603539025 dns-udp-queries-received-ipv6: 207358702 dns-tcp-queries-received-ipv4: 6904464 dns-tcp-queries-received-ipv6: 247758 dns-udp-responses-sent-ipv4: 2553193731 dns-udp-responses-sent-ipv6: 207644368 dns-tcp-responses-sent-ipv4: 6486542 dns-tcp-responses-sent-ipv6: 249350