--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7091710881 dns-udp-queries-received-ipv6: 1427299836 dns-tcp-queries-received-ipv4: 153654346 dns-tcp-queries-received-ipv6: 35315627 dns-udp-responses-sent-ipv4: 6984637308 dns-udp-responses-sent-ipv6: 1418403077 dns-tcp-responses-sent-ipv4: 147162762 dns-tcp-responses-sent-ipv6: 32008478