--- version: rssac002v3 service: m.root-servers.net start-period: '2019-03-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3646259579 dns-udp-queries-received-ipv6: 709540789 dns-udp-responses-sent-ipv4: 3491132353 dns-udp-responses-sent-ipv6: 659173001 dns-tcp-queries-received-ipv4: 179134853 dns-tcp-queries-received-ipv6: 43777834 dns-tcp-responses-sent-ipv4: 179079017 dns-tcp-responses-sent-ipv6: 43892498