--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5737995322 dns-udp-queries-received-ipv6: 1211444173 dns-tcp-queries-received-ipv4: 520545130 dns-tcp-queries-received-ipv6: 97463718 dns-udp-responses-sent-ipv4: 5293171349 dns-udp-responses-sent-ipv6: 1207829301 dns-tcp-responses-sent-ipv4: 363313876 dns-tcp-responses-sent-ipv6: 97149596