--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4294911330 dns-udp-queries-received-ipv6: 811100104 dns-tcp-queries-received-ipv4: 412776857 dns-tcp-queries-received-ipv6: 70449340 dns-udp-responses-sent-ipv4: 3815735820 dns-udp-responses-sent-ipv6: 794979427 dns-tcp-responses-sent-ipv4: 371302627 dns-tcp-responses-sent-ipv6: 68837839