--- version: rssac002v3 service: a.root-servers.net start-period: '2017-07-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3970225383 dns-udp-queries-received-ipv6: 387532469 dns-tcp-queries-received-ipv4: 151901284 dns-tcp-queries-received-ipv6: 9262287 dns-udp-responses-sent-ipv4: 3968974774 dns-udp-responses-sent-ipv6: 387495844 dns-tcp-responses-sent-ipv4: 151854928 dns-tcp-responses-sent-ipv6: 9356701