--- version: rssac002v3 service: m.root-servers.net start-period: '2019-07-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4090625461 dns-udp-queries-received-ipv6: 862786723 dns-udp-responses-sent-ipv4: 3882231246 dns-udp-responses-sent-ipv6: 816788069 dns-tcp-queries-received-ipv4: 246138217 dns-tcp-queries-received-ipv6: 65927951 dns-tcp-responses-sent-ipv4: 246893821 dns-tcp-responses-sent-ipv6: 66078713