--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-02-08T00:00:00Z' dns-udp-queries-received-ipv4: 2433878895 dns-udp-queries-received-ipv6: 523562370 dns-tcp-queries-received-ipv4: 45542061 dns-tcp-queries-received-ipv6: 13136886 dns-udp-responses-sent-ipv4: 2422668465 dns-udp-responses-sent-ipv6: 522223750 dns-tcp-responses-sent-ipv4: 42580382 dns-tcp-responses-sent-ipv6: 12457808