--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6343957131 dns-udp-queries-received-ipv6: 1506056279 dns-tcp-queries-received-ipv4: 520829153 dns-tcp-queries-received-ipv6: 125059801 dns-udp-responses-sent-ipv4: 5865196882 dns-udp-responses-sent-ipv6: 1488499340 dns-tcp-responses-sent-ipv4: 369666670 dns-tcp-responses-sent-ipv6: 123628917