[ofa-general] Infinband and DRBD

[Eli Cohen]

> I think it answers my question. I'm curious to know IPOIB-CM would offer
> better performance but can't find much information on the difference
> between IPOIB and IPOIB-CM on Google. Does anyone have a link or a
> little bit of info on the differences?
> 

IPoIB CM uses RC transport service to send/receive network traffic
while UD mode uses UD transport service. Generally, CM mode will give
you better throughput and UD mode will give better latency but UD mode
has gone through a lot of improvements and gives decent throughput
too.