--- version: rssac002v3 service: j.root-servers.net start-period: '2021-08-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6716271737 dns-udp-queries-received-ipv6: 1525740785 dns-tcp-queries-received-ipv4: 523896575 dns-tcp-queries-received-ipv6: 102861029 dns-udp-responses-sent-ipv4: 6251287044 dns-udp-responses-sent-ipv6: 1519100147 dns-tcp-responses-sent-ipv4: 371899688 dns-tcp-responses-sent-ipv6: 102613945