--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2022-01-21T00:00:00Z dns-udp-queries-received-ipv4: 3172447867 dns-udp-queries-received-ipv6: 688190229 dns-tcp-queries-received-ipv4: 63966118 dns-tcp-queries-received-ipv6: 33493552 dns-udp-responses-sent-ipv4: 3168204038 dns-udp-responses-sent-ipv6: 688084671 dns-tcp-responses-sent-ipv4: 65648470 dns-tcp-responses-sent-ipv6: 34471385