--- version: rssac002v3 service: i.root-servers.net start-period: '2021-09-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5332723117 dns-udp-queries-received-ipv6: 1303595022 dns-tcp-queries-received-ipv4: 575472509 dns-tcp-queries-received-ipv6: 164534872 dns-udp-responses-sent-ipv4: 4610560210 dns-udp-responses-sent-ipv6: 1160625223 dns-tcp-responses-sent-ipv4: 533541232 dns-tcp-responses-sent-ipv6: 159324031