--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 529936850 dns-udp-queries-received-ipv6: 173214237 dns-tcp-queries-received-ipv4: 6216714 dns-tcp-queries-received-ipv6: 806805 dns-udp-responses-sent-ipv4: 529516711 dns-udp-responses-sent-ipv6: 172724448 dns-tcp-responses-sent-ipv4: 5797584 dns-tcp-responses-sent-ipv6: 858188