--- version: rssac002v3 service: j.root-servers.net start-period: '2021-09-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5612453521 dns-udp-queries-received-ipv6: 1155523617 dns-tcp-queries-received-ipv4: 426528570 dns-tcp-queries-received-ipv6: 94170127 dns-udp-responses-sent-ipv4: 5274280018 dns-udp-responses-sent-ipv6: 1152732215 dns-tcp-responses-sent-ipv4: 317745051 dns-tcp-responses-sent-ipv6: 94228712