--- version: rssac002v3 service: i.root-servers.net start-period: '2018-05-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5946151177 dns-udp-queries-received-ipv6: 661809478 dns-tcp-queries-received-ipv4: 129749194 dns-tcp-queries-received-ipv6: 18018057 dns-udp-responses-sent-ipv4: 6012571007 dns-udp-responses-sent-ipv6: 684931810 dns-tcp-responses-sent-ipv4: 128031349 dns-tcp-responses-sent-ipv6: 18037657