Message-ID: <475875F9.3090503@davidnewall.com>
Date: Fri, 07 Dec 2007 08:51:45 +1030
From: David Newall <david@davidnewall.com>
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To: Andi Kleen <andi@firstfloor.org>
CC: Kyle Moffett <mrmacman_g4@mac.com>, Renzo Davoli <renzo@cs.unibo.it>,
       linux-kernel@vger.kernel.org
Subject: Re: New Address Family: Inter Process Networking (IPN)
References: <20071205164055.GA2082@cs.unibo.it> <p73bq94k8yd.fsf@bingen.suse.de> <20071206053016.GA1464@cs.unibo.it> <2BD0AF2A-959D-4744-9D2A-3AE84CF96CBB@mac.com> <47579DEB.9020102@davidnewall.com> <20071206163451.GB20595@one.firstfloor.org>
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Andi Kleen wrote:
>> Renzo also described something new (in the socket() arena): the 
>> multi-reader, multi-writer is just not available in IP.
>>     
>
> How is that different from a multicast group?
>   

Good question.  I don't know much about multicast IP.  It's a bit new 
for me.  I knew it uses Martian addresses!  After a little reading, I 
now know that it does allow many to many communication.

Renzo's IPN is a local protocol--you can't multicast to localhost.
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