--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5141042916 dns-udp-queries-received-ipv6: 1106536246 dns-tcp-queries-received-ipv4: 570974383 dns-tcp-queries-received-ipv6: 125297026 dns-udp-responses-sent-ipv4: 4468167000 dns-udp-responses-sent-ipv6: 1001531509 dns-tcp-responses-sent-ipv4: 537102451 dns-tcp-responses-sent-ipv6: 121268904