--- version: rssac002v3 service: b.root-servers.net start-period: 2017-04-30T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 2214901799 dns-udp-queries-received-ipv6: 322078456 dns-tcp-queries-received-ipv4: 59300489 dns-tcp-queries-received-ipv6: 6668737 dns-udp-responses-sent-ipv4: 2125463374 dns-udp-responses-sent-ipv6: 321872113 dns-tcp-responses-sent-ipv4: 59273136 dns-tcp-responses-sent-ipv6: 6664270