--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4656305450 dns-udp-queries-received-ipv6: 1013451098 dns-tcp-queries-received-ipv4: 538275401 dns-tcp-queries-received-ipv6: 126288290 dns-udp-responses-sent-ipv4: 4061237786 dns-udp-responses-sent-ipv6: 910183635 dns-tcp-responses-sent-ipv4: 529886513 dns-tcp-responses-sent-ipv6: 124341376