--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7056426297 dns-udp-queries-received-ipv6: 1333986203 dns-tcp-queries-received-ipv4: 138282172 dns-tcp-queries-received-ipv6: 33014579 dns-udp-responses-sent-ipv4: 7062392308 dns-udp-responses-sent-ipv6: 1344403778 dns-tcp-responses-sent-ipv4: 132855566 dns-tcp-responses-sent-ipv6: 30372159