--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5222668341 dns-udp-queries-received-ipv6: 1267874895 dns-tcp-queries-received-ipv4: 633885149 dns-tcp-queries-received-ipv6: 162577156 dns-udp-responses-sent-ipv4: 4234275879 dns-udp-responses-sent-ipv6: 1090439537 dns-tcp-responses-sent-ipv4: 572611492 dns-tcp-responses-sent-ipv6: 159002463