--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4893916598 dns-udp-queries-received-ipv6: 841909259 dns-tcp-queries-received-ipv4: 105885688 dns-tcp-queries-received-ipv6: 15540799 dns-udp-responses-sent-ipv4: 5000529728 dns-udp-responses-sent-ipv6: 852019123 dns-tcp-responses-sent-ipv4: 101216264 dns-tcp-responses-sent-ipv6: 15545566