--- version: rssac002v3 service: a.root-servers.net start-period: '2021-09-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4668647808 dns-udp-queries-received-ipv6: 1193537670 dns-tcp-queries-received-ipv4: 281769475 dns-tcp-queries-received-ipv6: 82355911 dns-udp-responses-sent-ipv4: 4638108012 dns-udp-responses-sent-ipv6: 1219172398 dns-tcp-responses-sent-ipv4: 273080586 dns-tcp-responses-sent-ipv6: 82491207