--- service: i.root-servers.net start-period: '2015-08-05T00:00:00Z' end-period: '2015-08-06T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5500654746 dns-udp-queries-received-ipv6: 273341032 dns-tcp-queries-received-ipv4: 13064976 dns-tcp-queries-received-ipv6: 297648 dns-udp-responses-sent-ipv4: 5454206349 dns-udp-responses-sent-ipv6: 275553680 dns-tcp-responses-sent-ipv4: 12955583 dns-tcp-responses-sent-ipv6: 304341