--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5757752134 dns-udp-queries-received-ipv6: 736988552 dns-tcp-queries-received-ipv4: 114132601 dns-tcp-queries-received-ipv6: 18073099 dns-udp-responses-sent-ipv4: 5788126544 dns-udp-responses-sent-ipv6: 736899492 dns-tcp-responses-sent-ipv4: 112004026 dns-tcp-responses-sent-ipv6: 18055724