Signature Package Upgrade

In this section:

1. Upgrading Application Signature Package
   AP DPI feature uses an Application Signature Package that in general it can be optionally updated when a new version is available.
2. Verifying the SigPack Upgrade
   You can verify if the upgrade process was successful as follows:
3. Rolling Back SigPack Upgrade to the Previous Version
   You can roll back to a previous SigPack version with these steps.