--- version: rssac002v3 service: j.root-servers.net start-period: '2019-09-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7891699021 dns-udp-queries-received-ipv6: 1770895809 dns-tcp-queries-received-ipv4: 819209478 dns-tcp-queries-received-ipv6: 256449974 dns-udp-responses-sent-ipv4: 7006780886 dns-udp-responses-sent-ipv6: 1548041685 dns-tcp-responses-sent-ipv4: 519296784 dns-tcp-responses-sent-ipv6: 147784877