RE: RDMAoE / lossless Ethernet (ewg: SC'09 BOF - Meeting notes)

["Paul Grun" <pgrun-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org>]

Or -
The emergence of standards-based lossless Ethernet (DCB) was the
precipitating factor that allowed us for the first time to talk about
running the IB message transport on what had formerly been a lossy network.

That said, there is a distinction to be made between 'works better' and 'is
required in order to work'.  Again, I don't think there is an argument to be
made for REQUIRING the use of DCB as a prerequisite to RoCEE.
Make sense?
-Paul

-----Original Message-----
From: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
[mailto:linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org] On Behalf Of Or Gerlitz
Sent: Wednesday, December 23, 2009 2:18 PM
To: Paul Grun
Cc: Roland Dreier; Or Gerlitz; Liran Liss; Yevgeny Petrilin; Richard Frank;
Sean Hefty; Linux RDMA list
Subject: Re: RDMAoE / lossless Ethernet (ewg: SC'09 BOF - Meeting notes)

Paul Grun <pgrun-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org> wrote:
> there doesn't appear to be an argument in favor of requiring DCB with
RoCEE

Interesting, the ofa server is down now, so I don't have access to ofa
IBoE materials, from my memory I recall that in ALL of them you have
made the IBoE/CEE bundling very clear & evident, e.g this  IBTA
presentation made to T11 @
http://www.t11.org/ftp/t11/pub/fc/study/09-543v0.pdf

Or.
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