--- version: rssac002v3 service: i.root-servers.net start-period: '2021-05-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5198587505 dns-udp-queries-received-ipv6: 1010159400 dns-tcp-queries-received-ipv4: 458969810 dns-tcp-queries-received-ipv6: 109202118 dns-udp-responses-sent-ipv4: 4439035208 dns-udp-responses-sent-ipv6: 914700385 dns-tcp-responses-sent-ipv4: 392786680 dns-tcp-responses-sent-ipv6: 95833672