--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5319221056 dns-udp-queries-received-ipv6: 1002300128 dns-tcp-queries-received-ipv4: 488562593 dns-tcp-queries-received-ipv6: 132291781 dns-udp-responses-sent-ipv4: 4335826883 dns-udp-responses-sent-ipv6: 928927220 dns-tcp-responses-sent-ipv4: 355466189 dns-tcp-responses-sent-ipv6: 119017821