--- version: rssac002v3 service: i.root-servers.net start-period: '2018-03-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6105459439 dns-udp-queries-received-ipv6: 733090176 dns-tcp-queries-received-ipv4: 126295308 dns-tcp-queries-received-ipv6: 13426779 dns-udp-responses-sent-ipv4: 6174933913 dns-udp-responses-sent-ipv6: 729945022 dns-tcp-responses-sent-ipv4: 124379561 dns-tcp-responses-sent-ipv6: 13393974