--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4283665453 dns-udp-queries-received-ipv6: 837050536 dns-tcp-queries-received-ipv4: 406983186 dns-tcp-queries-received-ipv6: 72527255 dns-udp-responses-sent-ipv4: 3844199627 dns-udp-responses-sent-ipv6: 826498621 dns-tcp-responses-sent-ipv4: 386413761 dns-tcp-responses-sent-ipv6: 72116835