On Mar 28, 2014, at 12:18 PM, "Shamis, Pavel" <sham...@ornl.gov> wrote:

>> Technically you may setup RoCE connection without RDMA CM. 
> 
> The version of the RoCE support that I implemented (in an alternative MPI 
> implementation) did it through the regular OOB
> channel. As I remember the only difference is the fact that you have to 
> exchange mac instead of guid plus some other small tricks. The problem
> of this approach is in the VLAN support, which is more challenging to 
> implement this way. Therefore RDMACM is sort of "preferred" method.


Huh.  Didn't know that.

-- 
Jeff Squyres
jsquy...@cisco.com
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