--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6299812094 dns-udp-queries-received-ipv6: 1395211240 dns-tcp-queries-received-ipv4: 552188202 dns-tcp-queries-received-ipv6: 108017338 dns-udp-responses-sent-ipv4: 5824281931 dns-udp-responses-sent-ipv6: 1386817105 dns-tcp-responses-sent-ipv4: 381808389 dns-tcp-responses-sent-ipv6: 105267328