From: Greg Banks <gnb@sgi.com>
Subject: Re: Re: [PATCH] resend: knfsd multiple UDP sockets
Date: Wed, 2 Jun 2004 10:47:45 +1000
Sender: nfs-admin@lists.sourceforge.net
Message-ID: <20040602004745.GA32206@sgi.com>
References: <20040528042007.GA9014@sgi.com> <16566.51874.43089.537506@cse.unsw.edu.au> <40BCAD5F.4DE90B76@amis.com>
Mime-Version: 1.0
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Cc: Neil Brown <neilb@cse.unsw.edu.au>,
        Linux NFS Mailing List <nfs@lists.sourceforge.net>
To: Eric Whiting <ewhiting@amis.com>
In-Reply-To: <40BCAD5F.4DE90B76@amis.com>
Errors-To: nfs-admin@lists.sourceforge.net

On Tue, Jun 01, 2004 at 10:22:55AM -0600, Eric Whiting wrote:
> Neil Brown wrote:
> >
> > I have two concerns, that can possibly be allayed.
> > 
> > Firstly, the reply to any request is going to go out the socket that
> > the request came in on.  However some network configurations can have
> > requests arrive on one interface that need to be replied to on a
> > different interface(*).  
> 
> Neil,
> 
> Some misc data: It is my understanding that 'networkappliance data ontap' is
> wired up to send replies out the same interface the request came in on. This
> solves some problems of managing systems connected via multiple network paths. 
> I realize it might also create other problems..

Linux is a general purpose OS where users have the expecation that
networking behaves in certain ways.  ONTAP drives an appliance whose
purpose is to run file sharing protocols.  This means they can make
network level compromises and optimisations that we can't. 

Greg.
-- 
Greg Banks, R&D Software Engineer, SGI Australian Software Group.
I don't speak for SGI.


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