The IP over ATM Mailing List Archive by date

[jhalpern@newbridge.com (Joel Halpern)]

I must have mis-understood something in Grenville's reply.
Therefore, I am going to try to paraphrase.

I think that there are two approaches:
1) Restrict Cut-through to direct pt-to-multipoint.  With the
    collateral mechanisms that Grenville outlined, this can removed
    the need for globally unique Source IDs.
2) Globally unique source IDs.

There were two other ideas in the response that I could not quite follow.
A) Two formats.  The notion that one could use a different source-id
    format depending on whether or not there were remote receivers of
    the multicast.  This seems to be a non-starter.  The whole point
    of an MCS is that the senders DON'T KNOW who the receivers are.

B) Some sort of larger space ID coordination.  I have trouble figuring
    out how one would have a useful space for this.  Every multicast
    group would have different attributes which determined the scope
    of appropriate cut-throughs.

Yours,
Joel M. Halpern				jhalpern@newbridge.com
Newbridge Networks Inc.