Chuck- Unfortunately I think your reasoning is a bit short sighted here. You can't make any of these assumptions without understanding the OP's environment both regard to business and technical requirements.
A T1 is way more than enough for hundreds of PCs to go to a DC across the WAN. While a couple of MLPPP T1s might be nice it's certainly not necessary. Logon traffic isn't that heavy. The number of users at a site is usually not the driver so much as the number of workstations. Workstations are the limiting factor - you can have 100 guys someplace but they might share 10 PCs. The business requirement is a real simple question - if the WAN link goes down will business continue at this site? If not, adding a DC doesn't do anything but cost money - doesn't matter whether users can log on. With cached credentials even when the link does go down they'll still be able to logon to their usual PCs anyway. Thanks, Brian Desmond [EMAIL PROTECTED] c - 312.731.3132 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Friday, January 26, 2007 7:36 PM To: [email protected] Subject: Re: [ActiveDir] Overlapping AD Subnet Boundaries What I would be interested to find out is: 1. What is the WAN link speed for the proposed 2nd AD site? 2. How much free available bandwidth do you have between the two desired sites? 3. How many users sit in the proposed 2nd AD site? If you have a fast reliable WAN connection (like a pair of bonded T-1s or higher) between the 2 sites then perhaps you don't need the 2nd site. I understand subnetting and it's possible to use a different subnet mask to achieve a separate subnet. However there should be a compelling reason to go to a second AD site before deploying it that requires it as this might save you making things more complex than required. Regards, Chuck
