--- version: rssac002v3 service: a.root-servers.net start-period: '2017-06-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3538140963 dns-udp-queries-received-ipv6: 370171612 dns-tcp-queries-received-ipv4: 174315052 dns-tcp-queries-received-ipv6: 8478520 dns-udp-responses-sent-ipv4: 3535726818 dns-udp-responses-sent-ipv6: 370147426 dns-tcp-responses-sent-ipv4: 173957652 dns-tcp-responses-sent-ipv6: 8574962