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lag lacp with 2 MT27500 Family [ConnectX-3] : total 80g throughput

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Hello,

 

I would like to know if there's a limitation on the maximum throughput possible with this card.

Actually i'm currently doing benchmarks and i tried to setup a link aggregation of 2 cards but unfortunately the maximum i reached is 39G (which is the physical limit of a single nic i guess).

 

Switch : Arista DCS-7050QX-32-F

OS : Debian

driver version : 2.2-1

 

Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer3+4 (1)

 

CPU : 2x(Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz)

The irq's are well balanced (i used the optimisation scripts provided with the driver).

 

Could you please help me to increase this limitation ?

 

Regards,

Smana


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