--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-10-01T00:00:00Z dns-udp-queries-received-ipv4: 2951894860 dns-udp-queries-received-ipv6: 512306259 dns-tcp-queries-received-ipv4: 96457653 dns-tcp-queries-received-ipv6: 63650871 dns-udp-responses-sent-ipv4: 2949009052 dns-udp-responses-sent-ipv6: 512183299 dns-tcp-responses-sent-ipv4: 97880137 dns-tcp-responses-sent-ipv6: 63854068