--- version: rssac002v3 service: i.root-servers.net start-period: '2018-07-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4968833049 dns-udp-queries-received-ipv6: 942985391 dns-tcp-queries-received-ipv4: 107944875 dns-tcp-queries-received-ipv6: 20186156 dns-udp-responses-sent-ipv4: 4935436868 dns-udp-responses-sent-ipv6: 940866635 dns-tcp-responses-sent-ipv4: 105312291 dns-tcp-responses-sent-ipv6: 20015294