--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5009584205 dns-udp-queries-received-ipv6: 723725208 dns-tcp-queries-received-ipv4: 125985160 dns-tcp-queries-received-ipv6: 13765446 dns-udp-responses-sent-ipv4: 4994143463 dns-udp-responses-sent-ipv6: 719500765 dns-tcp-responses-sent-ipv4: 124873260 dns-tcp-responses-sent-ipv6: 13793067