The IP Over NBMA (ION) Archive

[Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>]

William;

> Masataka,
> 
> Is your argument that the world should use very large subnets,
> or possibly just one enormous subnet?

No.

> Or, is your argument that ATMARP should work inter-subnet somehow?

No.

> I don't understand how ATMARP is as scalable as NHRP.

It is merely that NHRP is a lot less scalable than you would
have expected.

Thus, the IP world can't use very large "NBMA logical subnet".

>   But then, the ARP servers will need an additional protocol with
>   which to talk to each other - which will look remarkably like NHRP?!

Multicast-capable SCSP with well known ATM addresses may be a not-
so-bad option.

But, the issue is orthogonal to NHRP.

Anyway, the result is not so much scalable.

						Masataka Ohta