--- version: rssac002v3 service: m.root-servers.net start-period: '2019-12-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3374417103 dns-udp-queries-received-ipv6: 590922220 dns-udp-responses-sent-ipv4: 3169802333 dns-udp-responses-sent-ipv6: 562022873 dns-tcp-queries-received-ipv4: 197573058 dns-tcp-queries-received-ipv6: 77885394 dns-tcp-responses-sent-ipv4: 197488840 dns-tcp-responses-sent-ipv6: 77935106