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Re: [RRG] Tunnel fragmentation/reassembly for RRG map-and-encaps architectures




On Jan 9, 2008, at 6:27 AM, Eliot Lear wrote:

This discussion about CEF perhaps should spur some research. What percentage of the world's networks would need to be cached AT THE EDGES today?


Better yet, we should simply morph this into a more general discussion about properties of mapping solutions.

Presumably, the set of identifiers in the world is going to be very, very large. Simply pushing a full map to everywhere is going to be expensive, both in space and time. Pulling has latency issues. Reducing the number of places that have a full map seems like an attractive solution, but still leaves the push scalability problem, albeit with one less order of magnitude of an issue. For the places that have only a cache, how do you deal with cache misses?

What's the right approach here? Let's have a conceptual discussion and leave out the mechanisms, please.

Tony


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