What is the maximum throughput we will achieve with XL710-QDA2 2x40GE NIC ? Since these ports are full-duplex support, I am assuming per port it will achieve 80Gbps totally (TX:40Gbps, RX: 40Gbps) ?

[NYerr]

From x710 data sheet page 7, i could see it support only 40Gbps, even when connected via two 40Gbps connections.

Per port it support 40Gbps both TX,RX Combined ? 

https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/xl710-10-40-controller-datasheet.pdf

[VincentT_Intel]

Hi NYerr, Thank you for posting in Intel® Ethernet Community. We're currently checking your query and will update this thread as soon as possible. Best Regards, Vince T. Intel Customer Support Under Contract to Intel Corporation

[VincentT_Intel]

Hi NYerr, After further verification, the total throughput is still 40Gbps even when connected via two 40Gbps connections. The XL710 controller is made to handle up to 40Gb/s and the second port was added for more versatility. Hope this answers your question. Please let us know if you have other assistance needed. Best Regards, Vince T. Intel Customer Support Under Contract to Intel Corporation

[NYerr]

Hello Vince

You mean to say though these NIC ports are full duplex it will support max 40Gbps totally (RX,TX).

Is it possible for you to share throughput results, we would like see performance results with different packet sizes.

Thanks for you r support.

BR,

Naveen

[VincentT_Intel]

Hi Naveen, Let me check this internally, do you have specific packet sizes that needed to be part of the performance results? Best Regards, Vince T. Intel Customer Support Under Contract to Intel Corporation

[NYerr]

Hi Vince,

I am looking for below frame sizes.

64

102

128

256

512

650

1024

1280

BR,

Naveen

[NYerr]

Hi Vince,

Could you provide requested info.

BR,

Naveen

[VincentT_Intel · Accepted solution]

Hi Naveen, We have an existing article related to NIC performance, please refer to page 9 of the link below for XL710-QDA2 testing. Let us know if this will suffice your requirement. https://fast.dpdk.org/doc/perf/DPDK_18_02_Intel_NIC_performance_report.pdf Best Regards, Vince T. Intel Customer Support Under Contract to Intel Corporation

[VincentT_Intel]

Hi Naveen, Please let us know if there's other assistance needed. Best Regards, Vince T. Intel Customer Support Under Contract to Intel Corporation

[NYerr]

Thanks Vince for your support. We got the required information.

BR,

Naveen