[ewg] Re: [ofa-general] [PATCH 0/9] RDMAoE - RDMA over Ethernet

Jason Gunthorpe jgunthorpe at obsidianresearch.com
Tue Jun 16 14:33:09 PDT 2009


On Tue, Jun 16, 2009 at 02:07:03PM -0700, Paul Grun wrote:
> If I might chime in here...I've been working to actively squash the
> expression 'IBoE' or any variation that includes IB in the name.  The reason
> is because the InfiniBand Architecture is defined as a cohesive solution
> that includes five layers of the OSI stack.  Hence using the expression IBoE
> creates unnecessary confusion by implying that RDMAoE includes elements of
> IB from the five OSI layers, which is not an accurate description of the
> proposal.

I think stuff like this is creating alot of confusion about what the
actual intent here is. I've seen your presentations at Sonoma, I've
seen the stuff in IBTA - and I still don't know what the proponents of
this want.

Is this IBoE ala FCoE - in that gateways/routers can exist to create a
heterogeneous IB fabric with Ethernet and IB physical transports?

Or..

Is this ripping Chapter 9 out of IBA and mixing in a splash of
Ethernet to give us something entirely new and different? This is
exactly what Eli's patch set has done - and is certainly what the name
RDMAoE means to me.

Jason



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