Hi Tony,

> A prunner MUST build CDS only within its component, i.e. algorithm X will 
> only optimize the A1/B1/A2/B2 component and cannot start to "decide about 
> other parts of the network" like assuming what Y will do or tell nodes in Y 
> what to do. This would amount to give a simile something like "proxy purging" 
> and cannot work since prunners MUST not have any semantics about each other 
> (otherwise attempt to build algorithms independently and interoperate those  
> is impossible).


I think we are making progress.

Let me see if I can restate this:

A distributed algorithm computing a flooding topology must only operate upon 
nodes running the same algorithm (and version). If multiple algorithms (and/or 
versions) are running in the same network, then any given algorithm and version 
defines a subgraph and the algorithm can only optimize flooding within its own 
subgraph. Legacy full flooding must be used between subgraphs of different 
algorithms or versions.

Have I captured that accurately?

Tony

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