--- version: rssac002v3 service: j.root-servers.net start-period: '2021-08-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6338022399 dns-udp-queries-received-ipv6: 1427744567 dns-tcp-queries-received-ipv4: 498895765 dns-tcp-queries-received-ipv6: 161148534 dns-udp-responses-sent-ipv4: 5929558759 dns-udp-responses-sent-ipv6: 1424815319 dns-tcp-responses-sent-ipv4: 365609011 dns-tcp-responses-sent-ipv6: 168441255