--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4988097293 dns-udp-queries-received-ipv6: 1203126715 dns-tcp-queries-received-ipv4: 307384190 dns-tcp-queries-received-ipv6: 96309279 dns-udp-responses-sent-ipv4: 4998231463 dns-udp-responses-sent-ipv6: 1221192799 dns-tcp-responses-sent-ipv4: 289449625 dns-tcp-responses-sent-ipv6: 96354027