--- version: rssac002v3 service: b.root-servers.net start-period: 2018-04-01T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 2061848332 dns-udp-queries-received-ipv6: 266822534 dns-tcp-queries-received-ipv4: 83778189 dns-tcp-queries-received-ipv6: 11387025 dns-udp-responses-sent-ipv4: 1982200586 dns-udp-responses-sent-ipv6: 266340240 dns-tcp-responses-sent-ipv4: 83500794 dns-tcp-responses-sent-ipv6: 11394661