--- version: rssac002v3 service: i.root-servers.net start-period: '2021-10-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5053857169 dns-udp-queries-received-ipv6: 1104269835 dns-tcp-queries-received-ipv4: 430280947 dns-tcp-queries-received-ipv6: 129882666 dns-udp-responses-sent-ipv4: 4347369957 dns-udp-responses-sent-ipv6: 951463278 dns-tcp-responses-sent-ipv4: 402807535 dns-tcp-responses-sent-ipv6: 111615358