--- version: rssac002v3 service: j.root-servers.net start-period: '2018-09-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6150925616 dns-udp-queries-received-ipv6: 671608121 dns-tcp-queries-received-ipv4: 327444185 dns-tcp-queries-received-ipv6: 25410354 dns-udp-responses-sent-ipv4: 5682844128 dns-udp-responses-sent-ipv6: 661266863 dns-tcp-responses-sent-ipv4: 235320143 dns-tcp-responses-sent-ipv6: 24894517