--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5147454123 dns-udp-queries-received-ipv6: 936293173 dns-tcp-queries-received-ipv4: 110217485 dns-tcp-queries-received-ipv6: 16460243 dns-udp-responses-sent-ipv4: 5170831352 dns-udp-responses-sent-ipv6: 938044539 dns-tcp-responses-sent-ipv4: 106815207 dns-tcp-responses-sent-ipv6: 16445634