| Since it is not practical to solve the | routing scaling problem with host upgrades, | adding a core-edge separation scheme (ITRs, | ETRs and a mapping system) is a way of | providing portability and multihoming to | all end-user networks which want it, while | reducing the burden on routers, and while | maintaining the full Internet service at all | times. | | It is adding "stuff" - hardware, software | and a global mapping system - to the Net, | in order to avoid adding something uglier | and more expensive, ever-bigger routers | and a less stable DFZ (while still not | meeting the portability and multihoming | needs of many smaller end-user networks).
Well, that's certainly one opinion. If we want to change the architecture to something that we can live with in perpetuity, we might want to step back and take a larger view of the world. IPv6 is coming, like it or not. If its routing architecture is fundamentally flawed and we have to deploy awkward systems to compensate, then we will have to live with those indefinitely. Alternately, if we fix the routing architecture here and now, we might end up with a solution that we actually like. Tony _______________________________________________ rrg mailing list [email protected] https://www.irtf.org/mailman/listinfo/rrg
