--- version: rssac002v3 service: i.root-servers.net start-period: '2021-10-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5313423915 dns-udp-queries-received-ipv6: 1149526204 dns-tcp-queries-received-ipv4: 507595342 dns-tcp-queries-received-ipv6: 137244985 dns-udp-responses-sent-ipv4: 4537220973 dns-udp-responses-sent-ipv6: 990907422 dns-tcp-responses-sent-ipv4: 475883352 dns-tcp-responses-sent-ipv6: 121655810