[ofa-general] questions about opensm and unmanaged switch

[Yicheng Jia]

Hi Folks,

I use opensm with a single unmanaged switch to connect several HCAs. I 
found that HCAs take much longer time to get LID after opensm restart 
without power cycle the switch. If the switch is power off/on before 
opensm restart, then HCAs get their LIDs sooner. I'm wondering if there's 
minhop table pre-existing in the switch which will prevent HCAs from 
regain their LIDs soon. Is there any way to clean up the switch's hop 
table during opensm start?

my another question, should the HCA that opensm resides on be physically 
connected to switch port 0?

Thanks!
Yicheng

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