--- version: rssac002v3 service: i.root-servers.net start-period: '2021-10-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5110019658 dns-udp-queries-received-ipv6: 1172368774 dns-tcp-queries-received-ipv4: 496308316 dns-tcp-queries-received-ipv6: 144934817 dns-udp-responses-sent-ipv4: 4365850290 dns-udp-responses-sent-ipv6: 1000170529 dns-tcp-responses-sent-ipv4: 459893868 dns-tcp-responses-sent-ipv6: 129914970