--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5181505166 dns-udp-queries-received-ipv6: 878033941 dns-tcp-queries-received-ipv4: 504977297 dns-tcp-queries-received-ipv6: 123561525 dns-udp-responses-sent-ipv4: 4081019345 dns-udp-responses-sent-ipv6: 797095703 dns-tcp-responses-sent-ipv4: 365549235 dns-tcp-responses-sent-ipv6: 110586090