Havard,
The problem is this: so far "hardware scaling" of core routers has been riding on the coattails of general advances in electronics, driven by other and larger forces (PCs etc.). However, there is apparently no general market demand for "much, Much bigger TCAMs". This means that such components will be costly at best, maybe more costly
I tell you, widespread PI adoption is poison for the network. Maybe, maybe not. If I read things correctly, the suggestion is to take
I fully agree with that angle and the sentiments expressed in rfc4984. However, although of course I'm not a router vendor, if big data (tm) and scalability is a problem that can be solved on other planes we should be able to attack the routing problems as well. Maybe the current solutions don't fit the problems anymore. It would probably mean departing from the current router architectures and looking at much more parallel modular architectures all highly parallel and using where possible a lot of off-the-shelf components, e.g. where one engine does the control plane work and only does updating, policing, flow tagging/labeling and a data plane engine only forwards traffic. Of course this is hugely over simplified, we're getting very close to OT here as it is already :-) (don't forget in the high volume hardware market we've reached some kind of limit on speed as well, it'll be more about parallel processing now & next) the business side of things into account as well. It's kind of curious that this should stop at the (core) infrastructure side. The businesses and people that are actually using the Internet are equally if not more important. Since 2007 a lot of things have changed once again or maybe evolved further; people and businesses have grown even more dependant on Internet connectivity as could only have been expected. PI is a necessity for a lot of businesses, large _and_ small(er). I get a feeling the whole discussion is still only a technical one as itpasses by the actual Internet users (companies). If there is an element of the business, most of the people involved only argue on behalf of the (big) ISP side. Regards, Albert