bridge - yup,
Sonic Wall is a different layer, their site doesn't even mention TPMs, SEDs, FDE, TCG ... sure, I guess one could say Dell has changed their mind, is dumping TPM/SEDs and their managment and so on, but it is a reach. There are pieces of the Safend suite the seem to bump into pieces of the Sonic Wall stuff, but in the end, Trend buying Mobile Armor was more significant than Dell buying Sonic Wall.
The above content is my opinion.