--- version: rssac002v3 service: m.root-servers.net start-period: '2019-09-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3749679530 dns-udp-queries-received-ipv6: 869098211 dns-udp-responses-sent-ipv4: 3506522409 dns-udp-responses-sent-ipv6: 826874936 dns-tcp-queries-received-ipv4: 214205498 dns-tcp-queries-received-ipv6: 56553349 dns-tcp-responses-sent-ipv4: 214319007 dns-tcp-responses-sent-ipv6: 56588775