--- version: rssac002v3 service: i.root-servers.net start-period: '2019-04-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7063694858 dns-udp-queries-received-ipv6: 1293761669 dns-tcp-queries-received-ipv4: 126387190 dns-tcp-queries-received-ipv6: 27035100 dns-udp-responses-sent-ipv4: 6907036082 dns-udp-responses-sent-ipv6: 1298786149 dns-tcp-responses-sent-ipv4: 121393621 dns-tcp-responses-sent-ipv6: 25940874