--- version: rssac002v3 service: i.root-servers.net start-period: '2018-07-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5599540329 dns-udp-queries-received-ipv6: 991810609 dns-tcp-queries-received-ipv4: 123338167 dns-tcp-queries-received-ipv6: 21148398 dns-udp-responses-sent-ipv4: 5577068016 dns-udp-responses-sent-ipv6: 990030554 dns-tcp-responses-sent-ipv4: 120592158 dns-tcp-responses-sent-ipv6: 20923860