--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 83914824 dns-udp-queries-received-ipv6: 14940817 dns-tcp-queries-received-ipv4: 1939834 dns-tcp-queries-received-ipv6: 40671 dns-udp-responses-sent-ipv4: 86988709 dns-udp-responses-sent-ipv6: 14940814 dns-tcp-responses-sent-ipv4: 1966714 dns-tcp-responses-sent-ipv6: 40711