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Hello Garming,
Glad to hear from you. The case number 115041612643080 has been created for 
this inquiry. I will investigate and assist you on this.

Thanks,
Edgar

-----Original Message-----
From: Garming Sam [mailto:[email protected]] 
Sent: Wednesday, April 15, 2015 11:25 PM
To: Interoperability Documentation Help
Cc: [email protected]
Subject: MS-ADTS 6.2 - Knowledge consistency checker

Hi,

In attempting to implement the inter-site topology generation algorithm, it 
appears that cases around RODC are lacking clarity in the documentation.

For instance described in 6.2.2.3.3 - Site Graph Concepts, essentially Red 
describes sites with writable replicas, Black describes sites with only partial 
read-only and White with neither writable nor partial read-only replicas. But 
there is no mention of full read-only replicas.

The only assumption that could be made here is that they are white, however, 
there are two problems:

1. In 6.2.2.3.4.3 - Site Graph Construction under ColorVertices, Red describes 
sites with one or more DCs with full replicas - not writable. 
This would make full read-only replica Red.

2. Being marked as White, during intersite topology generation, sites with only 
an RODC do not appear in the spanning-tree computation. 
Therefore, they will never create any connections.

Being marked as Red however, there does not appear to be any restrictions in 
the graph construction on who may replicate from it (like a Black node for 
instance). Is there something here I am misunderstanding?

What color is a site containing only an RODC intended to be? And are there any 
additional undocumented special cases for RODC?


Cheers,

Garming Sam
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