--- service: h.root-servers.net metric: traffic-volume start-period: '2015-08-15T00:00:00Z' end-period: '2015-08-15T23:59:59Z' dns-udp-queries-received-ipv4: 1984339577 dns-udp-queries-received-ipv6: 161799801 dns-tcp-queries-received-ipv4: 108673 dns-tcp-queries-received-ipv6: 197125 dns-udp-responses-sent-ipv4: 1691528121 dns-udp-responses-sent-ipv6: 161539553 dns-tcp-responses-sent-ipv4: 47908 dns-tcp-responses-sent-ipv6: 174144