--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4632267175 dns-udp-queries-received-ipv6: 1109117366 dns-tcp-queries-received-ipv4: 439472015 dns-tcp-queries-received-ipv6: 159982411 dns-udp-responses-sent-ipv4: 3922939308 dns-udp-responses-sent-ipv6: 1048833442 dns-tcp-responses-sent-ipv4: 358822828 dns-tcp-responses-sent-ipv6: 150981631