--- version: rssac002v3 service: j.root-servers.net start-period: '2021-03-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6936857013 dns-udp-queries-received-ipv6: 1549684781 dns-tcp-queries-received-ipv4: 597114357 dns-tcp-queries-received-ipv6: 117729452 dns-udp-responses-sent-ipv4: 6382528209 dns-udp-responses-sent-ipv6: 1532361979 dns-tcp-responses-sent-ipv4: 413254087 dns-tcp-responses-sent-ipv6: 111379882