[openib-general] BandWidth doubt

[Greg Lindahl]

On Fri, Nov 10, 2006 at 03:32:34PM +0530, john t wrote:

> If I send data from mthca0-1 to mthca0-1 meaning from same port to the same
> port i.e. same port doing send/recv (also same cable doing send/recv) I get
> a BW of around 10 Gb/sec.

Note that the IB standard says in this case that the adaptor may not
send this traffic to the switch. So what you're seeing is a loopback
operation inside the HCA or inside the host.

-- greg