--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5616471391 dns-udp-queries-received-ipv6: 1030287492 dns-tcp-queries-received-ipv4: 134707890 dns-tcp-queries-received-ipv6: 25068308 dns-udp-responses-sent-ipv4: 5639789277 dns-udp-responses-sent-ipv6: 1031325491 dns-tcp-responses-sent-ipv4: 133019677 dns-tcp-responses-sent-ipv6: 24546824