tmsh (Traffic Management Shell) is the command-line interface used for managing and configuring the F5 BIG-IP system.

To enable SSL offloading, you need to configure an SSL profile and link it to a virtual server to handle SSL termination.

To change the boot volume on a BIG-IP system from one installed TMOS version to another, the correct CLI tool is:
switchboot
The correct syntax uses the -b flag:
switchboot -b <volume>
This command marks the specified boot location as the one to be used on the next reboot.
Thus, to boot into HD1.2 which contains 13.1.0.6, the sequence is:
Mark HD1.2 as the next boot location:
switchboot -b HD1.2
Reboot the system:
reboot
This is the standard and officially supported method for selecting a different installed volume.

SSL offloading moves the computationally expensive SSL decryption process to the BIG-IP system, improving performance by reducing the load on backend servers.

To understand:
Which modules are licensed
Which modules are provisioned
The resource requirements (CPU / RAM) of each module
The administrator uses:
System » Resource Provisioning
This page displays:
All modules present in the license
Whether they are enabled or disabled
Required memory to activate each module
CPU and disk allocation information
Provisioning level options (None / Minimal / Nominal / Dedicated)
This is the exact location where BIG-IP administrators evaluate module capacity before enabling or purchasing licensing upgrades.