--- version: rssac002v3 service: b.root-servers.net start-period: 2019-07-04T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 3294115481 dns-udp-queries-received-ipv6: 533669626 dns-tcp-queries-received-ipv4: 240420695 dns-tcp-queries-received-ipv6: 28326205 dns-udp-responses-sent-ipv4: 3019622100 dns-udp-responses-sent-ipv6: 533221970 dns-tcp-responses-sent-ipv4: 240382649 dns-tcp-responses-sent-ipv6: 28342952