--- version: rssac002v3 service: b.root-servers.net start-period: 2018-01-04T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 2641768257 dns-udp-queries-received-ipv6: 318739018 dns-tcp-queries-received-ipv4: 159460070 dns-tcp-queries-received-ipv6: 10444570 dns-udp-responses-sent-ipv4: 2522184709 dns-udp-responses-sent-ipv6: 318547486 dns-tcp-responses-sent-ipv4: 152552952 dns-tcp-responses-sent-ipv6: 10453015