--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5459348160 dns-udp-queries-received-ipv6: 972657480 dns-tcp-queries-received-ipv4: 115523483 dns-tcp-queries-received-ipv6: 27061284 dns-udp-responses-sent-ipv4: 5458538965 dns-udp-responses-sent-ipv6: 972989136 dns-tcp-responses-sent-ipv4: 114185851 dns-tcp-responses-sent-ipv6: 26522959