--- version: rssac002v3 service: j.root-servers.net start-period: '2021-08-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6646367472 dns-udp-queries-received-ipv6: 1544840078 dns-tcp-queries-received-ipv4: 528891087 dns-tcp-queries-received-ipv6: 114067114 dns-udp-responses-sent-ipv4: 6211389916 dns-udp-responses-sent-ipv6: 1546451868 dns-tcp-responses-sent-ipv4: 376402363 dns-tcp-responses-sent-ipv6: 114426206