--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6075262643 dns-udp-queries-received-ipv6: 1326045183 dns-tcp-queries-received-ipv4: 574138253 dns-tcp-queries-received-ipv6: 108788007 dns-udp-responses-sent-ipv4: 5596671949 dns-udp-responses-sent-ipv6: 1322989792 dns-tcp-responses-sent-ipv4: 403423994 dns-tcp-responses-sent-ipv6: 108720295