--- version: rssac002v3 service: j.root-servers.net start-period: '2021-08-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6594534291 dns-udp-queries-received-ipv6: 1498252697 dns-tcp-queries-received-ipv4: 559647090 dns-tcp-queries-received-ipv6: 117378003 dns-udp-responses-sent-ipv4: 6102046663 dns-udp-responses-sent-ipv6: 1487763056 dns-tcp-responses-sent-ipv4: 398148794 dns-tcp-responses-sent-ipv6: 113961561