--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4920337663 dns-udp-queries-received-ipv6: 1161681543 dns-tcp-queries-received-ipv4: 296673881 dns-tcp-queries-received-ipv6: 97997693 dns-udp-responses-sent-ipv4: 4900881227 dns-udp-responses-sent-ipv6: 1178786117 dns-tcp-responses-sent-ipv4: 281711905 dns-tcp-responses-sent-ipv6: 98096467