--- version: rssac002v3 service: m.root-servers.net start-period: '2019-05-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3398719318 dns-udp-queries-received-ipv6: 824424200 dns-udp-responses-sent-ipv4: 3215582758 dns-udp-responses-sent-ipv6: 773638176 dns-tcp-queries-received-ipv4: 159600288 dns-tcp-queries-received-ipv6: 51267927 dns-tcp-responses-sent-ipv4: 159591074 dns-tcp-responses-sent-ipv6: 51267981