--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6406449699 dns-udp-queries-received-ipv6: 1601766997 dns-tcp-queries-received-ipv4: 518962306 dns-tcp-queries-received-ipv6: 121456005 dns-udp-responses-sent-ipv4: 5936065311 dns-udp-responses-sent-ipv6: 1518940945 dns-tcp-responses-sent-ipv4: 368080242 dns-tcp-responses-sent-ipv6: 113442634