--- version: rssac002v3 service: i.root-servers.net start-period: '2016-06-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4947255971 dns-udp-queries-received-ipv6: 486132761 dns-tcp-queries-received-ipv4: 20834041 dns-tcp-queries-received-ipv6: 1070633 dns-udp-responses-sent-ipv4: 4920844488 dns-udp-responses-sent-ipv6: 486842813 dns-tcp-responses-sent-ipv4: 21299326 dns-tcp-responses-sent-ipv6: 1075430