--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4737887127 dns-udp-queries-received-ipv6: 1177107162 dns-tcp-queries-received-ipv4: 502263158 dns-tcp-queries-received-ipv6: 136305162 dns-udp-responses-sent-ipv4: 4115958445 dns-udp-responses-sent-ipv6: 1045705008 dns-tcp-responses-sent-ipv4: 434951721 dns-tcp-responses-sent-ipv6: 107401424