--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5780786955 dns-udp-queries-received-ipv6: 1162917406 dns-tcp-queries-received-ipv4: 518006794 dns-tcp-queries-received-ipv6: 138379866 dns-udp-responses-sent-ipv4: 5343553008 dns-udp-responses-sent-ipv6: 1159669281 dns-tcp-responses-sent-ipv4: 363536950 dns-tcp-responses-sent-ipv6: 142751374