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<font size=3>At 01:59 PM 10/10/2005, Sean Hefty wrote:<br>
<blockquote type=cite class=cite cite="">Michael Krause wrote:<br>
<blockquote type=cite class=cite cite="">
<blockquote type=cite class=cite cite="">
<blockquote type=cite class=cite cite="">What about the case of iWARP
<-> IB ?</blockquote><br>
Crossing IB shouldn't matter. iWarp should simply cross the IB
subnet using IPoIB. You could build a gateway to make the transfer
across IB more efficient, but it's not required.</blockquote>I don't
understand this statement. iWARP is RDMA based and if someone
</blockquote><br>
I was referring to the case where both endpoints are running over iWarp,
with IB being one of the subnets being crossed. I believe that
you're referring to one side running over iWarp, and the other running
over IB, with an application level gateway in between.<br><br>
For the latter case, I would think that the gateway needs to establish
iWarp connections for any IP addresses that reside on the IB subnet
behind it, with a separate IB connection on the back-end. It seems
to me that this would occur transparently to the application using
iWarp.</blockquote><br>
iWARP with IB in between seems like a waste of time to do (very small if
any market for such a beast). IB HCA on a host with an iWARP edge
device may be reasonable but again seems like a waste to construct.
These types of corner usage models while of interest to comprehend to see
if there is any architectural issues to insure they are not precluded
really are just that, corner cases, and little time or effort should be
spent on their support.<br><br>
Mike</font></body>
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