--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-08-21T00:00:00Z dns-udp-queries-received-ipv4: 2977386334 dns-udp-queries-received-ipv6: 420321518 dns-tcp-queries-received-ipv4: 126374669 dns-tcp-queries-received-ipv6: 63465768 dns-udp-responses-sent-ipv4: 2973704300 dns-udp-responses-sent-ipv6: 420267775 dns-tcp-responses-sent-ipv4: 130055351 dns-tcp-responses-sent-ipv6: 65549496