--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5185051237 dns-udp-queries-received-ipv6: 933839829 dns-tcp-queries-received-ipv4: 500905920 dns-tcp-queries-received-ipv6: 138023468 dns-udp-responses-sent-ipv4: 4128245531 dns-udp-responses-sent-ipv6: 848498635 dns-tcp-responses-sent-ipv4: 353417216 dns-tcp-responses-sent-ipv6: 124283869