[Users] ibsim updates routing tables?

[Hal Rosenstock]

ibsim just simulates the network (topology, SMAs, and PMAs). OpenSM
configured the subnet including the routing (LFTs and MFTs) based on the
routing algorithm. It is possible in a topology that multiple routing
algorithms yield the same routes. More specifics would be needed to comment
"deeper"...

-- Hal


On Tue, Oct 22, 2013 at 6:38 PM, Robert LeBlanc <robert_leblanc at byu.edu>wrote:

> I'm trying to test routing in ibsim, but it doesn't seem to update the
> routing tables in the simulated switches. If I take a link down using the
> clear command in ibsim, I see opensm saying that it is updating the routing
> tables and that it completes, but I can't ibtracert to the LID who's path
> was taken down.
>
> Should ibsim and opensm be reconfiguring routing in the simulated
> environment? No matter which routing protocol I select in opensm, the
> routes are always the same, even having opensm re-LID the entire fabric
> doesn't help. Any help would be appreciated.
>
> Output from opensm:
>
> ******************************************************************
> ***** LID ASSIGNMENT COMPLETE - STARTING SWITCH TABLE CONFIG *****
> ******************************************************************
>
>
> Oct 22 16:27:20 330198 [8437A700] 0x04 ->
> osm_ucast_mgr_build_lid_matrices: Starting switches' Min Hop Table
> Assignment
> Oct 22 16:27:20 330954 [8437A700] 0x02 -> osm_ucast_mgr_process: minhop
> tables configured on all switches
> Oct 22 16:27:20 331191 [8437A700] 0x04 -> do_sweep:
>
>
> ******************************************************************
> **************** SWITCHES CONFIGURED FOR UNICAST *****************
> ******************************************************************
>
>
> Thanks,
>
> Robert LeBlanc
> OIT Infrastructure & Virtualization Engineer
> Brigham Young University
>
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