<leafNode name="vni">
            <properties>
              <help>Virtual Network Identifier</help>
              <valueHelp>
                <format>0-16777214</format>
                <description>VXLAN virtual network identifier</description>
              </valueHelp>
              <constraint>
                <validator name="numeric" argument="--range 0-16777214"/>
              </constraint>
            </properties>
          </leafNode>