--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5092982838 dns-udp-queries-received-ipv6: 915456387 dns-tcp-queries-received-ipv4: 507539272 dns-tcp-queries-received-ipv6: 100969667 dns-udp-responses-sent-ipv4: 4419200141 dns-udp-responses-sent-ipv6: 914091522 dns-tcp-responses-sent-ipv4: 439938011 dns-tcp-responses-sent-ipv6: 94947638