On 14 December 2015 at 06:10, <lloyd.wood@xxxxxxxxxxx> wrote: Hey, > Going to 50-bit addresses with ten bits per field? > That makes no sense from a computing efficiency > viewpoint, as those are not powers of 2. Can you explain which operation becomes significantly more costly, which you'd use here? I keep hearing this power of two argument, bit I'm finding hard time imagining efficient parser or lookup implementation which cares about it. -- ++ytti