--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4835462035 dns-udp-queries-received-ipv6: 827430368 dns-tcp-queries-received-ipv4: 474644521 dns-tcp-queries-received-ipv6: 122745633 dns-udp-responses-sent-ipv4: 3913971882 dns-udp-responses-sent-ipv6: 768656963 dns-tcp-responses-sent-ipv4: 357411442 dns-tcp-responses-sent-ipv6: 109937727