Path: utzoo!attcan!uunet!fernwood!apple!decwrl!ucbvax!NMS.HLS.COM!salzman
From: salzman@NMS.HLS.COM (Mike Salzman)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Reliable Broadcasts? (was Re: Reliable Datagram ??? Protocols)
Message-ID: <9010300340.AA15183@nms.>
Date: 30 Oct 90 02:40:07 GMT
References: <73238@sgi.sgi.com>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: Hughes Lan Systems, Mt View Ca
Lines: 17

I suspect that the notion of reliable and group membership 
dealt not with the ephemeral group that exists while a message
is being multicast, but rather with the commercial application 
that requires the confirmation that all members of a designated
group obtained the set of messages to which they were entitled.

Examples include updates of Price Lists, of Catalogs, of
reservations, of inventories, etc.  

The presumption in XTP is that all those who are alive, awake
and listening will received the multicast "reliably".  XTP does
not, to my knowledge, address itself to the administration of 
a group which is addressed by a multicast.
-- 
-------------------- salzman@hls.com ----------------------
Michael M. Salzman  Voice (415) 966-7479  Fax (415)960-3738	
Hughes Lan Systems  1225 Charleston Road   Mt View Ca 94043