--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7427785268 dns-udp-queries-received-ipv6: 1313428675 dns-tcp-queries-received-ipv4: 138752745 dns-tcp-queries-received-ipv6: 33860745 dns-udp-responses-sent-ipv4: 7351531879 dns-udp-responses-sent-ipv6: 1355016335 dns-tcp-responses-sent-ipv4: 132691710 dns-tcp-responses-sent-ipv6: 31458033