--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6332071522 dns-udp-queries-received-ipv6: 1338319802 dns-tcp-queries-received-ipv4: 540386609 dns-tcp-queries-received-ipv6: 90831465 dns-udp-responses-sent-ipv4: 5871266236 dns-udp-responses-sent-ipv6: 1333136899 dns-tcp-responses-sent-ipv4: 380299332 dns-tcp-responses-sent-ipv6: 90359520