--- version: rssac002v3 service: j.root-servers.net start-period: '2019-09-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8168455037 dns-udp-queries-received-ipv6: 1758947967 dns-tcp-queries-received-ipv4: 846382320 dns-tcp-queries-received-ipv6: 262398023 dns-udp-responses-sent-ipv4: 7293558537 dns-udp-responses-sent-ipv6: 1529100965 dns-tcp-responses-sent-ipv4: 538981029 dns-tcp-responses-sent-ipv6: 150117893