[openib-general] Question

[Roland Dreier]

    Ronald> So this brings up another question. ibnetdiscover is
    Ronald> plenty fast, and opensm is plenty slow. What kind of
    Ronald> messaging could I do once i have a network all worked out
    Ronald> via ibnetdiscover?

Unfortunately, even if you know the topology of your network, the only
messaging you can do is to send directed route management packets.
The subnet manager is responsible for assigning LIDs to ports and
programming the switch forwarding tables.  Without that, no LID-routed
traffic can flow, and directed route traffic is very slow (every
switch in the directed route must forward the packet in firmware).

 - R.