--- version: rssac002v3 service: i.root-servers.net start-period: '2022-01-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6952727023 dns-udp-queries-received-ipv6: 1650620940 dns-tcp-queries-received-ipv4: 728356202 dns-tcp-queries-received-ipv6: 89286599 dns-udp-responses-sent-ipv4: 6043656067 dns-udp-responses-sent-ipv6: 1554383337 dns-tcp-responses-sent-ipv4: 729132275 dns-tcp-responses-sent-ipv6: 71854887