[openib-general] [RFC] IB address translation using ARP

[Michael Krause]

At 06:24 AM 9/30/2005, Yaron Haviv wrote:
> > -----Original Message-----
> > From: Roland Dreier [mailto:rolandd at cisco.com]
> > Sent: Thursday, September 29, 2005 9:50 PM
> > To: Sean Hefty
> > Cc: Yaron Haviv; Openib
> > Subject: Re: [openib-general] [RFC] IB address translation using ARP
> >
> > I think the usage model is the following: you have some magic device
> > that has an IB port on one side and "something else" on the other
> > side.  Think of something like a gateway that talks SDP on the IB side
> > and TCP/IP on the other side.
> >
>
>Also applicable to two IB ports, e.g. forwarding SDP traffic from one IB
>partition to SDP on another partition (may even be the same port with
>two P_Keys), and doing some load-balancing or traffic management in
>between, overall there are many use cases for that.

While I can envision how an endpoint could communicate with another in 
separate partitions, doing so really violates the spirit of the 
partitioning where endpoints must be in the same partition in order to see 
one another and communicate.  Attempting to create an intermediary who has 
insights into both and then somehow is able to communicate how to find one 
another using some proprietary (can't be through standards that I can think 
of) method, seems like way too much complexity to be worth it.

Mike 
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