--- version: rssac002v3 service: m.root-servers.net start-period: '2019-03-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3954996063 dns-udp-queries-received-ipv6: 758422248 dns-udp-responses-sent-ipv4: 3777977669 dns-udp-responses-sent-ipv6: 675354674 dns-tcp-queries-received-ipv4: 169422887 dns-tcp-queries-received-ipv6: 43694201 dns-tcp-responses-sent-ipv4: 164790027 dns-tcp-responses-sent-ipv6: 43887484