--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5791893380 dns-udp-queries-received-ipv6: 1124754448 dns-tcp-queries-received-ipv4: 108077147 dns-tcp-queries-received-ipv6: 19418311 dns-udp-responses-sent-ipv4: 5795166572 dns-udp-responses-sent-ipv6: 1152252122 dns-tcp-responses-sent-ipv4: 105385118 dns-tcp-responses-sent-ipv6: 19138892