--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4974697251 dns-udp-queries-received-ipv6: 1118995269 dns-tcp-queries-received-ipv4: 86790809 dns-tcp-queries-received-ipv6: 17281106 dns-udp-responses-sent-ipv4: 4976736382 dns-udp-responses-sent-ipv6: 1140323783 dns-tcp-responses-sent-ipv4: 84390111 dns-tcp-responses-sent-ipv6: 16994331