--- version: rssac002v3 service: j.root-servers.net start-period: '2019-09-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8116427000 dns-udp-queries-received-ipv6: 1729776462 dns-tcp-queries-received-ipv4: 723483781 dns-tcp-queries-received-ipv6: 247761570 dns-udp-responses-sent-ipv4: 7341273365 dns-udp-responses-sent-ipv6: 1518290112 dns-tcp-responses-sent-ipv4: 474301885 dns-tcp-responses-sent-ipv6: 144244448