--- version: rssac002v3 service: m.root-servers.net start-period: '2019-07-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4139375500 dns-udp-queries-received-ipv6: 917637695 dns-udp-responses-sent-ipv4: 3930572541 dns-udp-responses-sent-ipv6: 871238376 dns-tcp-queries-received-ipv4: 278466364 dns-tcp-queries-received-ipv6: 65352171 dns-tcp-responses-sent-ipv4: 278971097 dns-tcp-responses-sent-ipv6: 65469785