--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4924384817 dns-udp-queries-received-ipv6: 975703824 dns-tcp-queries-received-ipv4: 416425652 dns-tcp-queries-received-ipv6: 137409449 dns-udp-responses-sent-ipv4: 4164215162 dns-udp-responses-sent-ipv6: 901205810 dns-tcp-responses-sent-ipv4: 333800827 dns-tcp-responses-sent-ipv6: 138495349