--- version: rssac002v3 service: j.root-servers.net start-period: '2018-03-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4637236742 dns-udp-queries-received-ipv6: 405951452 dns-tcp-queries-received-ipv4: 174230453 dns-tcp-queries-received-ipv6: 15698107 dns-udp-responses-sent-ipv4: 4523286928 dns-udp-responses-sent-ipv6: 402784848 dns-tcp-responses-sent-ipv4: 148999112 dns-tcp-responses-sent-ipv6: 15537633