--- version: rssac002v3 service: j.root-servers.net start-period: '2021-09-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6322072419 dns-udp-queries-received-ipv6: 1291581347 dns-tcp-queries-received-ipv4: 469608752 dns-tcp-queries-received-ipv6: 95560635 dns-udp-responses-sent-ipv4: 5926136926 dns-udp-responses-sent-ipv6: 1288608930 dns-tcp-responses-sent-ipv4: 344531261 dns-tcp-responses-sent-ipv6: 95609915