--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6531003266 dns-udp-queries-received-ipv6: 1367496708 dns-tcp-queries-received-ipv4: 560558764 dns-tcp-queries-received-ipv6: 112292588 dns-udp-responses-sent-ipv4: 6033012525 dns-udp-responses-sent-ipv6: 1363261753 dns-tcp-responses-sent-ipv4: 392275325 dns-tcp-responses-sent-ipv6: 112209010