--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5517723518 dns-udp-queries-received-ipv6: 942355598 dns-tcp-queries-received-ipv4: 434686879 dns-tcp-queries-received-ipv6: 122788332 dns-udp-responses-sent-ipv4: 4770266348 dns-udp-responses-sent-ipv6: 866736924 dns-tcp-responses-sent-ipv4: 342180223 dns-tcp-responses-sent-ipv6: 116202238