Active Directory KCC Intersite Connections

Question

We have 10 AD sites connected via high speed MPLS circuit and all sites are currently part of the DEFAULTIPSITELINK. 3 of the sites have multiple domain controllers and the others have just 1. The Forest and domain functional levels are at Windows Server
2008R2. The KCC has manually created the intersite inbound replication connections but this does not look right to me:
10 sites; Site A to Site J
Site A has inbound connections from a single DC from all other sites
Sites B - J all have a single intersite connection from Site A
I know this uses a spanning tree algorithm but cant find documentation which states exactly what the algorithm uses to determine the auto created connections. Latency to and from each site is pretty much the same. Does these auto generated connections seem
right? I would have expected the intersite connections to have been spread out a bit more evenly.
Thanks

Answer 1

Hi,
Thanks for the info, I had read that document and we are looking to change the AD site links and and create manual connections to ensure we have better optimized replication. 4 of the sites have high speed links and the other 10 or so will have lower speed
links. My thought was to create a new site link called MainSites and add the 4 sites with the high speed links and have them replicate with each other every 60 minutes. I would then like the slower link sites to replicate with the main sites every 2 hours
but am not sure how to configure the site links for these. For instance if I created a site link and added 3 of the slower sites in, do I add one of the main sites into this link as well to ensure they replicate with them or can I only have a site as a member
of a single site link?
Alistair