The BDC should handle local but it is not uncommon
for the machines to use the DC across the link. It may
be necessary to manipulate the secure channel. Have
a look:

http://support.microsoft.com/kb/181171/en-us

You can also manipulate the synch pulse to have it
synchronize in the evening:
http://support.microsoft.com/kb/207552/en-us

"jacobbe" <jac@workstation.tict> wrote in message
news:pan.2006.12.05.00.11.59.921653@workstation.ti ct...
> Hi, I'm not very skilled on MS server envinroments, but I would understand
> if I can manage synchronization between 2 servers.
>
> Servers are on 2 different offices linked by a bit slow connection.
> User on an office usually don't access to the resources of the other one,
> but it has to be possible.
>
> I plan to use a BDC like a "cache" for the first office to speed up data
> access from the local user.
>
> Data trasfer between the offices will be low and limited to the modified
> data sync.
>
> What do you think? It's possible?
>
> Sorry for my english...
>
> --
> .jac