content caching on distribution servers

Hi Everybody,

I would like to clarify how content caching on distribution servers work.

We're running desktop central with distribution servers distributed across the WAN.

I have deployed a custom software package hosted on the default network share. The default network share is located within SITE A.

The package is then distributed to computers via the self-service portal.

SITE B has a distribution server.
If computers within SITE B install the package, will the local distribution server cache a copy of the package so other computers on site can install the package without copying the content over the WAN?

Regards

Kingsley