--- version: rssac002v3 service: j.root-servers.net start-period: '2021-08-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6057189381 dns-udp-queries-received-ipv6: 1296862016 dns-tcp-queries-received-ipv4: 600555580 dns-tcp-queries-received-ipv6: 96692318 dns-udp-responses-sent-ipv4: 5581692476 dns-udp-responses-sent-ipv6: 1292446244 dns-tcp-responses-sent-ipv4: 430107619 dns-tcp-responses-sent-ipv6: 95732128