--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4700064615 dns-udp-queries-received-ipv6: 885738204 dns-tcp-queries-received-ipv4: 527534629 dns-tcp-queries-received-ipv6: 111271393 dns-udp-responses-sent-ipv4: 3700245951 dns-udp-responses-sent-ipv6: 786195586 dns-tcp-responses-sent-ipv4: 409395866 dns-tcp-responses-sent-ipv6: 102481564