--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4253751828 dns-udp-queries-received-ipv6: 838228115 dns-tcp-queries-received-ipv4: 425906745 dns-tcp-queries-received-ipv6: 71380703 dns-udp-responses-sent-ipv4: 3749609598 dns-udp-responses-sent-ipv6: 821604615 dns-tcp-responses-sent-ipv4: 384453037 dns-tcp-responses-sent-ipv6: 68820460