--- version: rssac002v3 service: i.root-servers.net start-period: '2017-12-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4652967123 dns-udp-queries-received-ipv6: 572636473 dns-tcp-queries-received-ipv4: 82703796 dns-tcp-queries-received-ipv6: 12080717 dns-udp-responses-sent-ipv4: 4711976177 dns-udp-responses-sent-ipv6: 577469671 dns-tcp-responses-sent-ipv4: 82902661 dns-tcp-responses-sent-ipv6: 12148035