--- version: rssac002v3 service: j.root-servers.net start-period: '2021-09-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5777673042 dns-udp-queries-received-ipv6: 1161923859 dns-tcp-queries-received-ipv4: 459069116 dns-tcp-queries-received-ipv6: 98974894 dns-udp-responses-sent-ipv4: 5396824137 dns-udp-responses-sent-ipv6: 1159499786 dns-tcp-responses-sent-ipv4: 334205125 dns-tcp-responses-sent-ipv6: 99180068