--- version: rssac002v3 service: b.root-servers.net start-period: 2018-07-12T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 2743560627 dns-udp-queries-received-ipv6: 344418561 dns-tcp-queries-received-ipv4: 122372800 dns-tcp-queries-received-ipv6: 15978130 dns-udp-responses-sent-ipv4: 2660947993 dns-udp-responses-sent-ipv6: 344174682 dns-tcp-responses-sent-ipv4: 122320947 dns-tcp-responses-sent-ipv6: 15989527