<!-- include start from dns/time-to-live.xml.i --> <leafNode name="ttl"> <properties> <help>Time-to-live (TTL)</help> <valueHelp> <format>u32:0-2147483647</format> <description>TTL in seconds</description> </valueHelp> <constraint> <validator name="numeric" argument="--range 0-2147483647"/> </constraint> </properties> </leafNode> <!-- include end -->