--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6098196613 dns-udp-queries-received-ipv6: 1183356854 dns-tcp-queries-received-ipv4: 129762027 dns-tcp-queries-received-ipv6: 28879890 dns-udp-responses-sent-ipv4: 6154968039 dns-udp-responses-sent-ipv6: 1186387546 dns-tcp-responses-sent-ipv4: 127174263 dns-tcp-responses-sent-ipv6: 27948881