--- version: rssac002v3 service: j.root-servers.net start-period: '2017-12-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4689479408 dns-udp-queries-received-ipv6: 447739097 dns-tcp-queries-received-ipv4: 162425376 dns-tcp-queries-received-ipv6: 13020762 dns-udp-responses-sent-ipv4: 4586110638 dns-udp-responses-sent-ipv6: 446512106 dns-tcp-responses-sent-ipv4: 135254935 dns-tcp-responses-sent-ipv6: 13043447