--- version: rssac002v3 service: m.root-servers.net start-period: '2019-05-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3925974211 dns-udp-queries-received-ipv6: 787076770 dns-udp-responses-sent-ipv4: 3679484184 dns-udp-responses-sent-ipv6: 730065261 dns-tcp-queries-received-ipv4: 161080968 dns-tcp-queries-received-ipv6: 46028661 dns-tcp-responses-sent-ipv4: 161145329 dns-tcp-responses-sent-ipv6: 46135615