--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5227777714 dns-udp-queries-received-ipv6: 933141090 dns-tcp-queries-received-ipv4: 117197883 dns-tcp-queries-received-ipv6: 17232367 dns-udp-responses-sent-ipv4: 5251761267 dns-udp-responses-sent-ipv6: 933152534 dns-tcp-responses-sent-ipv4: 113964345 dns-tcp-responses-sent-ipv6: 17154422