--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-10-20T00:00:00Z dns-udp-queries-received-ipv4: 3174566204 dns-udp-queries-received-ipv6: 549104103 dns-tcp-queries-received-ipv4: 97042659 dns-tcp-queries-received-ipv6: 47541517 dns-udp-responses-sent-ipv4: 3171855341 dns-udp-responses-sent-ipv6: 549051042 dns-tcp-responses-sent-ipv4: 98385097 dns-tcp-responses-sent-ipv6: 48675462