--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5451982694 dns-udp-queries-received-ipv6: 1278659326 dns-tcp-queries-received-ipv4: 310621545 dns-tcp-queries-received-ipv6: 103269662 dns-udp-responses-sent-ipv4: 5461538730 dns-udp-responses-sent-ipv6: 1309104030 dns-tcp-responses-sent-ipv4: 296837325 dns-tcp-responses-sent-ipv6: 103255688