Re: [Lsr] LSR Flooding Reduction Drafts - Moving Forward

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> I think distributed is more practical too. 


I would appreciate more detailed insights as to why you (and others) feel this way.  It is not at all obvious to me.


> For computing routes, we have been using distributed SPF on every node for many years.


True, but that algorithm is (and was) very well known and a fixed algorithm that would clearly solve the problem at the time. If we were in a similar situation, where we were ready to set an algorithm in concrete, I might well agree, but it’s quite clear that we are NOT at that point yet.  We will need to experiment and modify algorithms, and as discussed, that’s easier with a centralized approach.


> In fact, we may not need to run the exact algorithm on every node. As long as the algorithms running on different nodes generate the same result, that would work. 


Insuring a globally consistent result without running the exact same algorithm on the exact same data will be quite a trick.  Debugging distributed problems at scale is already a hard problem.  Having different algorithms in different locations would add another order of magnitude in difficulty.  No thank you.

Tony