--- version: rssac002v3 service: m.root-servers.net start-period: '2019-01-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3714985144 dns-udp-queries-received-ipv6: 642160977 dns-udp-responses-sent-ipv4: 3574280365 dns-udp-responses-sent-ipv6: 624408130 dns-tcp-queries-received-ipv4: 222571400 dns-tcp-queries-received-ipv6: 40961353 dns-tcp-responses-sent-ipv4: 222436904 dns-tcp-responses-sent-ipv6: 41084761