On Thu, Aug 15, 2019 at 3:33 AM shyam bandyopadhyay <shyamb66@xxxxxxxxx> wrote: > > > If it can be shown that 64 bits address space is good enough to solve > all the requirements, either we have to move back to 64 bits address > space in the future or we have to carry through this extra burden for ever for no reason. > Even if 64 bit addresses are good enough, why does it follow that we want to transition to them? What is the burden you are concerned with? There is a significant cost to changing all the networking hardware and software that already uses IPv6 addresses. What benefit do we get from 64 bit addresses that justifies this cost?
