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From: J.Crowcroft@CS.UCL.AC.UK (Jon Crowcroft)
Newsgroups: comp.protocols.iso.dev-environ
Subject: Re: distributed programming language/ISODE
Message-ID: <9106121454.AA09147@ucbvax.Berkeley.EDU>
Date: 12 Jun 91 07:44:00 GMT
References: <9106101309.AA07743@cadlab.cadlab.de>
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 >My intention is:
 >"to build the one-to-many RPC/Rendezvous-like communication aspect of my
 > DPL on top of the transport layer (or higher layers) of the ISO/OSI reference
 > model using multicast communication semantic >s (n * point-to-point)".
 >I intend to use ISODE to implement the communication aspects of my DPL.

your best bet is to examine the ANSA/ISA work on GEX - the Group
EXecution RPC part of the ANSA/RPC system it is being slowly fed to
the ODP standards (GEX was the group version of REX the RPC
transport...this may have changed in more recent documents than i've
seen).... that is about the only thing i've ever seen from standards literate 
people that addresses the problems of multicast above level 3 in the stack!!

i would be extremely interested if you find any practical work in
multicast at/above transport service...(i mean multicast that not only
does group entitiy addressing, buyt admitsd of packet optimisation the
way IP multicast can..)

thanks
jon.