--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-09-04T00:00:00Z dns-udp-queries-received-ipv4: 2810532473 dns-udp-queries-received-ipv6: 411420209 dns-tcp-queries-received-ipv4: 124106024 dns-tcp-queries-received-ipv6: 64929166 dns-udp-responses-sent-ipv4: 2807813844 dns-udp-responses-sent-ipv6: 411374267 dns-tcp-responses-sent-ipv4: 127369285 dns-tcp-responses-sent-ipv6: 66608869