--- version: rssac002v3 service: m.root-servers.net start-period: '2019-02-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3920904684 dns-udp-queries-received-ipv6: 749967611 dns-udp-responses-sent-ipv4: 3727115025 dns-udp-responses-sent-ipv6: 721606145 dns-tcp-queries-received-ipv4: 181067795 dns-tcp-queries-received-ipv6: 41140063 dns-tcp-responses-sent-ipv4: 181067324 dns-tcp-responses-sent-ipv6: 41329713