--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6394882213 dns-udp-queries-received-ipv6: 400113114 dns-tcp-queries-received-ipv4: 128900327 dns-tcp-queries-received-ipv6: 13169336 dns-udp-responses-sent-ipv4: 6390907154 dns-udp-responses-sent-ipv6: 400068840 dns-tcp-responses-sent-ipv4: 129052431 dns-tcp-responses-sent-ipv6: 13296320