[ofa-general] [PATCH] infiniband-diags/scripts: Add ibcheckroutes to scripts

[Eli Dorfman (Voltaire)]

Yevgeny Kliteynik wrote:

>>  
>> Not quite. It assures there should be a path but not necessarily a
>> route as all the LFTs are not checked with the CA port LIDs.
> 
> One such example is ftree routing.
> First it creates all the CA-2-CA routes, and only after this
> it creates switch-2-switch routing. So in case of ftree routing,
> having full connectivity between leaf switches doesn't imply
> anything w.r.t. CA-2-CA connectivity.

If that is the case then I think ftree routing may be dramatically improved.
This was also the implementation for minhop long time ago and was improved to calculate minhops between switches and then extend by 1 for all CAs that are attached to the switch.

We can add a flag to check routes between 
ALL-2-ALL
CA-2-CA
SW-2-SW
LeafSW-2-LeafSW