Depending on the size of the network and how your pushing LU's. I imagine a test would be to see if your locally doing this it should go relatively fast, typically for me it take maybe 1 to 4 minutes at most per Workstation.
If your using LU Administrator make sure the distribution and DL scheduleing are at slightly different times, off peak hours would be the best.
I have read in recent weeks that if your doing the initial distro of The antivirus and LU, it could be about 10 minutes for the machine to install and setup the Live updates. not to mention I believe it does a quick scan on completion.
Whether your systems are getting it pushed from a local server, or pulling updates from symantec could be taking up a good amount of band width. I would assume using the local server would definately help out with the band width.
I don't know I could be way off in left field but thats my somewhat educated guess for a few thoughts on the matter.
Edited by bleepingnetwork, 17 December 2008 - 07:15 AM.