--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-10-21T00:00:00Z dns-udp-queries-received-ipv4: 3205765929 dns-udp-queries-received-ipv6: 541410390 dns-tcp-queries-received-ipv4: 97872432 dns-tcp-queries-received-ipv6: 48173182 dns-udp-responses-sent-ipv4: 3202865346 dns-udp-responses-sent-ipv6: 541357565 dns-tcp-responses-sent-ipv4: 99333611 dns-tcp-responses-sent-ipv6: 49332388