I don't think I understand your question Roger... I will give it a try anyway...
I haven't noticed a performance impact due to having the additional subnets if that is what you are asking. Then I wouldn't really expect it since it should be implemented as a simple btree search. The main reason I did it years ago was because contrary to documentation new DC's that were promoed that weren't on a defined subnet DID NOT go into Default First Site. They would go into some other site defined by some logic that I failed to ascertain which was a pain since we have several hundred sites. Additionally when we have clients come up on undefined subnets we would rather they get directed to our corporate datacenters versus randomly picking some site somewhere. This makes sense since we are basically three interconnected geographic hub and spokes networks with the interconnections between the hubs. The way the data center and the sorting sites (sites with the class-a's) and site links are defined the sorting sites end up using the data centers for DC coverage. It works out well. We, of course, would rather have all of the subnets and sites defined properly, but we understand reality and know it won't happen so we try to reduce pain felt by unsuspecting users by crutching as best as possible. joe -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roger Seielstad Sent: Thursday, August 28, 2003 7:09 AM To: '[EMAIL PROTECTED]' Subject: RE: [ActiveDir] overlapping IP space in AD sites? Is there any significant performance that you can discern from that scheme? -------------------------------------------------------------- Roger D. Seielstad - MTS MCSE MS-MVP Sr. Systems Administrator Inovis Inc. > -----Original Message----- > From: Joe [mailto:[EMAIL PROTECTED] > Sent: Wednesday, August 27, 2003 6:37 PM > To: [EMAIL PROTECTED] > Subject: RE: [ActiveDir] overlapping IP space in AD sites? > > > This is fine. We actually have a couple of class A subnets defined and > the subdefine those to more specific sites. > > I.E. Class A points to an overall company site. Many 24 bit mask or 23 > bit mask subnets are then defined to further refine the site the > clients should use. The clients will chase through the logic and find > the subnet > that most closely matches it and use that site. > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Thommes, > Michael M. > Sent: Wednesday, August 27, 2003 11:10 AM > To: Active Directory Mailing List (E-mail) > Subject: [ActiveDir] overlapping IP space in AD sites? > > > Hi, > We have a pretty complex IP structure with various types of access. > As we develop AD sites for low bandwidth connected remote offices, I > was wondering how AD handles site subnet definitions that might > overlap one > another. For example: > > 10.10.0.0/16 = Site 1 > 10.10.88.0/25 = Site 2 > > The AD Sites and Services mmc allows (doesn't complain) about > overlapping subnets. As always, any comments or experiences in this > area are appreciated! > > Mike Thommes > Argonne National Laboratory > List info : http://www.activedir.org/mail_list.htm > List FAQ : http://www.activedir.org/list_faq.htm > List archive: > http://www.mail-archive.com/activedir%40mail.activedir.org/ > > List info : http://www.activedir.org/mail_list.htm > List FAQ : http://www.activedir.org/list_faq.htm > List archive: > http://www.mail-archive.com/activedir%> 40mail.activedir.org/ > List info : http://www.activedir.org/mail_list.htm List FAQ : http://www.activedir.org/list_faq.htm List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ List info : http://www.activedir.org/mail_list.htm List FAQ : http://www.activedir.org/list_faq.htm List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
