The IP Over NBMA (ION) Archive

[Albert Manfredi <manfredi@arl.bna.boeing.com>]

Claude.Castelluccia@sophia.inria.fr wrote:
> 
> After reading the paper "FLow Labelled IP: A Conneclionless
> Approach to ATM", I have a question that can not go out of my
> mind, so I'll ask it to you....
> 
> In IP Switching, most of the ATM signaling has been removed such that
> if someone want to have strict QoS guaranties, he needs to use a resource
> reservation protocol such as RSVP... my question is then: why not also keep ATM
> signaling software such that one can also use ATM signaling to establish
> a connection and make some resource reservation?  This solution would have
> the advantage to be ATM-compatible!
> 
> Am I missing something?

Only missing that the goal is not ATM compatibility in these proposals,
but rather IP compatibility (without big complications). Different
proposals aim at maintaining different amounts of ATM intact. Keeping
ATM signaling and supporting IP transparently in a reasonably large ATM
net turns out to be very difficult.

Bert
manfredi@arl.bna.boeing.com