--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5513194509 dns-udp-queries-received-ipv6: 1339553502 dns-tcp-queries-received-ipv4: 599585252 dns-tcp-queries-received-ipv6: 147425906 dns-udp-responses-sent-ipv4: 4637299418 dns-udp-responses-sent-ipv6: 1193320058 dns-tcp-responses-sent-ipv4: 547606763 dns-tcp-responses-sent-ipv6: 143554595