--- version: rssac002v3 service: i.root-servers.net start-period: '2018-12-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5809944726 dns-udp-queries-received-ipv6: 1124142591 dns-tcp-queries-received-ipv4: 122236005 dns-tcp-queries-received-ipv6: 29450332 dns-udp-responses-sent-ipv4: 5748099889 dns-udp-responses-sent-ipv6: 1129389398 dns-tcp-responses-sent-ipv4: 118465173 dns-tcp-responses-sent-ipv6: 28857752