--- version: rssac002v3 service: a.root-servers.net start-period: '2021-09-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5378885715 dns-udp-queries-received-ipv6: 1308473975 dns-tcp-queries-received-ipv4: 319481171 dns-tcp-queries-received-ipv6: 99707983 dns-udp-responses-sent-ipv4: 5342305226 dns-udp-responses-sent-ipv6: 1347016767 dns-tcp-responses-sent-ipv4: 307587989 dns-tcp-responses-sent-ipv6: 100092937