--- version: rssac002v3 service: b.root-servers.net start-period: 2018-06-30T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 2502237145 dns-udp-queries-received-ipv6: 326321151 dns-tcp-queries-received-ipv4: 124946957 dns-tcp-queries-received-ipv6: 14435871 dns-udp-responses-sent-ipv4: 2415960927 dns-udp-responses-sent-ipv6: 326131800 dns-tcp-responses-sent-ipv4: 115284292 dns-tcp-responses-sent-ipv6: 14446198