--- version: rssac002v3 service: a.root-servers.net start-period: '2017-10-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4011667357 dns-udp-queries-received-ipv6: 498008586 dns-tcp-queries-received-ipv4: 171193772 dns-tcp-queries-received-ipv6: 11325020 dns-udp-responses-sent-ipv4: 3989009523 dns-udp-responses-sent-ipv6: 495281951 dns-tcp-responses-sent-ipv4: 170695504 dns-tcp-responses-sent-ipv6: 11353031