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When designing AD sites and services, microsoft typically recommends a hub spoke topology. What I can't find is a definitive answer on the site link membership. Each spoke will have a site link that connects to the hub. In turn, does the hub site link contain ALL spoke sites as members?
the alternatives would be
sitea-hub
siteb-hub
sitec-hub
sitea-siteb-sitec-hub
or
sitea-hub
siteb-hub
sitec-hub
bridge all site links would be enabled in both scenarios.
Maybe something here helps.
https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/plan/creating-a-site-link-bridge-design
Thanks for the reply. I have been poring over the MS documentation on this topic and even the link you provided doesn't speak directly to my question. As each site will need to replicate to the with the hub its easy to say that that site link will only have the spoke and the hub site as members. I guess my question is should each site have a second site link associated with it? the hub site link will have all spoke sites as well as itself as members?
This question is more relevant if we are dealing with 3 or more sites in the same domain.
Probably so. They're just bidirectional connections that the KCC will manage.
https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/get-started/replication/active-directory-replication-concepts
Just checking if there's any progress or updates?
--please don't forget to upvote and Accept as answer if the reply is helpful--
I think the link you provided answered my question in a very oblique manner. The question is should each site in a three site active directory environment have 2 site links. Assuming all sites are fully routable we can leave bridge all site links enabled and - per the article "you do not need to create redundant site links to improve Active Directory replication efficiency."
So this leads me to believe that each site needs just one site link.
Yes, I'd agree with that 100%. Thanks for rephrasing the question.
Just checking if there's any progress or updates?
--please don't forget to upvote and Accept as answer if the reply is helpful--