--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4796485744 dns-udp-queries-received-ipv6: 926368000 dns-tcp-queries-received-ipv4: 416219999 dns-tcp-queries-received-ipv6: 123649185 dns-udp-responses-sent-ipv4: 3931125679 dns-udp-responses-sent-ipv6: 858991601 dns-tcp-responses-sent-ipv4: 323044640 dns-tcp-responses-sent-ipv6: 123347854