--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5129044940 dns-udp-queries-received-ipv6: 919888623 dns-tcp-queries-received-ipv4: 409136709 dns-tcp-queries-received-ipv6: 123477199 dns-udp-responses-sent-ipv4: 4313770157 dns-udp-responses-sent-ipv6: 837929475 dns-tcp-responses-sent-ipv4: 322089292 dns-tcp-responses-sent-ipv6: 115958412