--- version: rssac002v3 service: j.root-servers.net start-period: '2021-09-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5538143229 dns-udp-queries-received-ipv6: 1163243587 dns-tcp-queries-received-ipv4: 424116611 dns-tcp-queries-received-ipv6: 98246058 dns-udp-responses-sent-ipv4: 5199094001 dns-udp-responses-sent-ipv6: 1158470064 dns-tcp-responses-sent-ipv4: 315515085 dns-tcp-responses-sent-ipv6: 97999975