--- version: rssac002v3 service: m.root-servers.net start-period: '2019-03-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4566123570 dns-udp-queries-received-ipv6: 712219122 dns-udp-responses-sent-ipv4: 4233997459 dns-udp-responses-sent-ipv6: 653304146 dns-tcp-queries-received-ipv4: 258391801 dns-tcp-queries-received-ipv6: 43656746 dns-tcp-responses-sent-ipv4: 253172951 dns-tcp-responses-sent-ipv6: 43715918