--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8188450405 dns-udp-queries-received-ipv6: 1348322501 dns-tcp-queries-received-ipv4: 600096633 dns-tcp-queries-received-ipv6: 82261835 dns-udp-responses-sent-ipv4: 7300180632 dns-udp-responses-sent-ipv6: 1300546950 dns-tcp-responses-sent-ipv4: 429740091 dns-tcp-responses-sent-ipv6: 59329914