> # Database Activation Rejection

> Database activation is rejected in the following cases:

> - Missing or conflicting entries exist in the configuration database but not in the active database.
> - The auto-learning feature was enabled before the activation. To reactivate a database in this state, disable auto-learning.
> - The exact security is not configured for each PortChannel member.
> - The configured database is empty but the active database is not.

> If the database activation is rejected due to one or more conflicts listed in the previous section, you may decide to proceed by forcing the port security activation.

> Copyright 2010-2015, Cisco Systems, Inc. All rights reserved.