Scheduling updates to client machines.

Hi,

How many ways can we schedule updates to client machines installed with SEP client?

The one i came to know is in "use the default symantec live update server" can be used to schedule updates to client machines directly from internet(not from SEP manager). This method would also consume a lot of bandwidth. Is there any other way by which i can schedule updates to a group of machines on non-peak hours to avoid heavy bandwidth utilization?

Regards,

Anish