If the management capability of the device remains unchanged after the device software upgrade, you do not need to apply for a new license. If the management scale is enlarged or new management components are added after the device software upgrade, you need to apply for a new license. The license application procedure is the same as that for initial license application. The ESDP system will automatically combine control items in the original license and the new license.

When you apply for a new license due to device upgrade, ensure that the ESN in the new license is the same as that in the original license. If they are different, the ESDP system cannot combine control items in the original license and the new license.
For details, see the License Usage Guide document to obtain related information.
Step 1 Log in to Huawei enterprise technical support website: http://support.huawei.com/enterprise.
Step 2 Click Routers.
Step 3 Click the name of the product to be queried, for example, AR1200.
Step 4 Choose Installation & Upgrade > License Guide to find the License Usage Guide document.
Step 5 Open the License Usage Guide. Choose License Management > 4.1 Obtaining the License file > 4.1.1 Obtaining COMM Licenses for New Site Projects/4.1.2 Obtaining COMM Licenses for Capacity Expansion Projects to obtain related information.