--- version: rssac002v3 service: b.root-servers.net start-period: 2017-04-19T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 2548712969 dns-udp-queries-received-ipv6: 364999605 dns-tcp-queries-received-ipv4: 68016439 dns-tcp-queries-received-ipv6: 7231810 dns-udp-responses-sent-ipv4: 2443191995 dns-udp-responses-sent-ipv6: 364631249 dns-tcp-responses-sent-ipv4: 67987152 dns-tcp-responses-sent-ipv6: 7227068