--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4853006217 dns-udp-queries-received-ipv6: 1071384624 dns-tcp-queries-received-ipv4: 556077433 dns-tcp-queries-received-ipv6: 121504973 dns-udp-responses-sent-ipv4: 4160260432 dns-udp-responses-sent-ipv6: 972019430 dns-tcp-responses-sent-ipv4: 530424172 dns-tcp-responses-sent-ipv6: 120354424