Saturday, February 2, 2019

Service Providers with BGP-free cores: How do you handle IGP area/level design?

I know there are people around here that are a fan of leaving everything in L2 or Area 0, but I'm sure once you get to run a larger network that is no longer the best option due to reconvergence + lack of summarization and filtering capability.

So, how do you go about separating areas? Do you give each PoP its own, and put the Backbone links in L2/A0? Do you ever stretch areas between the PoPs? Or do you do away with the multi-area design altogether in favour of some sort of a BGP solution?



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