--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5180244441 dns-udp-queries-received-ipv6: 405747219 dns-tcp-queries-received-ipv4: 113095833 dns-tcp-queries-received-ipv6: 13187594 dns-udp-responses-sent-ipv4: 5176065271 dns-udp-responses-sent-ipv6: 405721743 dns-tcp-responses-sent-ipv4: 113287963 dns-tcp-responses-sent-ipv6: 13317821