--- version: rssac002v3 service: i.root-servers.net start-period: '2022-01-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6242968027 dns-udp-queries-received-ipv6: 1513881532 dns-tcp-queries-received-ipv4: 689658792 dns-tcp-queries-received-ipv6: 73843687 dns-udp-responses-sent-ipv4: 5423812711 dns-udp-responses-sent-ipv6: 1414685366 dns-tcp-responses-sent-ipv4: 693037399 dns-tcp-responses-sent-ipv6: 56765337