--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5137222093 dns-udp-queries-received-ipv6: 1013532866 dns-tcp-queries-received-ipv4: 482565519 dns-tcp-queries-received-ipv6: 130196457 dns-udp-responses-sent-ipv4: 4144960920 dns-udp-responses-sent-ipv6: 934670227 dns-tcp-responses-sent-ipv4: 344137890 dns-tcp-responses-sent-ipv6: 117042247