[ofa-general] OpenSM Up-Down algorithm

[Sagi Schlanger]

Hi,
 
I'm looking for some answers on Up-Down routing at OpenSM .
 
Is anybody familiar with a utility/procedure to find credit loops given
a topology and routing settings?
 
Is there a handy spec describing the OpenSM Up-Down algorithm?
What is the scheme through which roots are defined on clos and non
clos/fat tree topologies?
Is this algorithm always credit loop free?
How efficient is using this algorithm on non clos/fat tree topologies?
 
Thanks for your cooperation,
Sagi
____________________________________________________________
Sagi Schlanger  | +972-9-9717651 (o)   |   +972-52-2385154 (m)
Software Engineer, IB Switch
Voltaire - The Grid Backbone
 
 www.voltaire.com <http://www.voltaire.com/> 

 
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