--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4991359609 dns-udp-queries-received-ipv6: 1082283631 dns-tcp-queries-received-ipv4: 435565395 dns-tcp-queries-received-ipv6: 126458723 dns-udp-responses-sent-ipv4: 4176512494 dns-udp-responses-sent-ipv6: 1005156174 dns-tcp-responses-sent-ipv4: 341498918 dns-tcp-responses-sent-ipv6: 117859179