--- version: rssac002v3 service: a.root-servers.net start-period: '2017-09-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3648641766 dns-udp-queries-received-ipv6: 426971031 dns-tcp-queries-received-ipv4: 123738014 dns-tcp-queries-received-ipv6: 10863633 dns-udp-responses-sent-ipv4: 3646356943 dns-udp-responses-sent-ipv6: 426922711 dns-tcp-responses-sent-ipv4: 123316101 dns-tcp-responses-sent-ipv6: 10965299