--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6346562271 dns-udp-queries-received-ipv6: 1191246271 dns-tcp-queries-received-ipv4: 132340510 dns-tcp-queries-received-ipv6: 36371741 dns-udp-responses-sent-ipv4: 6260898657 dns-udp-responses-sent-ipv6: 1212092870 dns-tcp-responses-sent-ipv4: 128128183 dns-tcp-responses-sent-ipv6: 34523296