--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6979052658 dns-udp-queries-received-ipv6: 1326964262 dns-tcp-queries-received-ipv4: 140385800 dns-tcp-queries-received-ipv6: 32340820 dns-udp-responses-sent-ipv4: 6993678372 dns-udp-responses-sent-ipv6: 1329435258 dns-tcp-responses-sent-ipv4: 134723008 dns-tcp-responses-sent-ipv6: 29634985