--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6257556622 dns-udp-queries-received-ipv6: 725705797 dns-tcp-queries-received-ipv4: 128802271 dns-tcp-queries-received-ipv6: 19037848 dns-udp-responses-sent-ipv4: 6267118382 dns-udp-responses-sent-ipv6: 726232854 dns-tcp-responses-sent-ipv4: 126833728 dns-tcp-responses-sent-ipv6: 19023911