--- version: rssac002v3 service: a.root-servers.net start-period: '2017-10-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3731201841 dns-udp-queries-received-ipv6: 421181283 dns-tcp-queries-received-ipv4: 175960183 dns-tcp-queries-received-ipv6: 11997593 dns-udp-responses-sent-ipv4: 3718982276 dns-udp-responses-sent-ipv6: 418821966 dns-tcp-responses-sent-ipv4: 175121946 dns-tcp-responses-sent-ipv6: 11734559