--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6570540995 dns-udp-queries-received-ipv6: 1387103318 dns-tcp-queries-received-ipv4: 614797770 dns-tcp-queries-received-ipv6: 112867819 dns-udp-responses-sent-ipv4: 6080242090 dns-udp-responses-sent-ipv6: 1383261504 dns-tcp-responses-sent-ipv4: 440447887 dns-tcp-responses-sent-ipv6: 112516471