NIC Teaming provides bad performance (static LAG)

[FScze]

Hi,

we do suffer from very bad peerformance when teaming a NIC with the 82599 chip set using Windows 10 pro.

We are using the GigEVision protocoll top transmit images from a camera via dual 10GigE to a PC.

We never achieve a bandwidth which is higher than using a single link.

The connection itself is less stable and since the data is transmitted via UDP we are suffering from severe data losses.

Did anyone encounter somethng similar or even has a solution for this?

Any help appreciated.

Thank you all!

BR,

Frank

[Caguicla_Intel]

Hello FScze,

Thank you for posting in Intel Ethernet Communities.

Please share the following information for us to check on your request

1.) Driver version loaded on the system

2.) Teaming details; number of team members as well as detailed configuration

3.) Number of devices connected to the team

Kindly take note that "Throughput is always higher to multiple addresses than to a single address, regardless of the number of adapters.". If the LAG team is only sending traffic to 1 system, only 1 team member will be utilized.

Please visit Teaming with Intel® Advanced Network Services for your reference

https://www.intel.com/content/www/us/en/support/articles/000005667/network-and-i-o/ethernet-products.html

We look forward to your response.

In case we don't hear from you, we'll follow up after 3 business days.

Best Regards,

Crisselle C

Intel Customer Support

[FScze]

Dear Criselle, thank you for your fast reply! Please find attached the system data used. The system setup is like this: 1 GiGE Vision camera with 2x 10GigE interfaces. * Directly connected to the Intel NIC, no switches ore similar in between I am fully aware that the performance of a LAG never will be the same as the on of two independent links. But it does not even reach half the performance of a single link. I can use almost the full bandwidth of one single link without experiencing packet losses. If I use the link aggregation I can hardly transmit 5Gbit without packet loss. This can be seen on Windows 10 pro 1903 build It does look a little better if I use Windows server as operating system. But even there, the performance with LAG is very far from being useful. We are using UDP to transmit the data. Best regards, Frank

[Caguicla_Intel]

Hello Frank,

Thank you very much for the reply. However, some of the requested information is not mentioned here. With this, please provide the System Support Utility log of your system. This will allow us to check your Adapter details and configuration. Kindly refer to the steps below.

a- Go to https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows-?product=91600 and download the software.

b- Open SSU.exe

c- Mark the box "Everything" and then click "Scan".

d- When finished scanning, click "Next".

e- Click on "Save" and attach the file to a post.

Awaiting to your reply.

In case we don't hear from you, we'll follow up after 3 business days.

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

Good day!

Please provide the requested information for us to further check on your request. If you have additional questions, please do not hesitate to ask.

Looking forward to hear from you.

Should we not receive a reply from you, we'll follow up after 3 business days.

Best Regards,

Crisselle C

Intel Customer Support

[FScze]

Dear Crisselle,

please find the requested information to this post.

Best regards,

Frank

[Caguicla_Intel]

Hello Frank,

Thank you for the reply.

Please allow us to check on the provided information. We will get back to you within 2-3 business days to provide an update.

Hoping for your patience.

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

Apologies for the delay on this matter.

After further checking, mentioned on our Teaming Article (link below), to use LAG, it must be used with an 802.3ad, FEC/GEC, or Link Aggregation capable switch.

https://www.intel.com/content/www/us/en/support/articles/000005667/network-and-i-o/ethernet-products.html

Let us know if you have additional questions and clarifications.

Should there be no response form you, we’ll follow up after 3 business days.

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

Good day!

We'd like to check if you were able to receive our previous message. In case you have additional questions, please do not hesitate to let us know.

Looking forward to your reply.

In case we don't hear from you, we’ll follow up after 3 business days.

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

How are you today?

Please be informed that we will now close this request since we haven't received any response from our previous follow ups. Just feel free to post a new question if you may have any other inquiry in the future.

May you have a lovely day!

Best Regards,

Crisselle C

Intel Customer Support

[FScze]

Dear Crisselle,

sorry for the late reply.

The solution with a switch makes no sense to me. We are using a point to point connection. Why should I run an additional switch here? This is not suitable for our customers. Our applications are cost sensitive and we choose this solution in order to save components and money.

Bottom line is that the setup of one dual SFP+ NIC and our ddual SFP+ camera is not suitable if we want to use LAG?

Best regards,

Frank

[Caguicla_Intel]

Hello Frank,

Thank you for the prompt reply.

We understand that adding switch would not be cost effective. However, as mentioned above, LAG must be used with an 802.3ad, FEC/GEC, or Link Aggregation capable switch.

Kindly clarify your question here. This would help us further checking your request.

Bottom line is that the setup of one dual SFP+ NIC and our ddual SFP+ camera is not suitable if we want to use LAG?

We look forward to your response.

In case we don't hear from you, we will follow up after 3 business days.

Best Regards,

Crisselle C

Intel Customer Support

[FScze]

Hello Criselle,

OK, then this setup will not be suitable for our camera.

We will probably move to a dedicated grabber board then. Without a direct connection and static LAG it makes no sense for our customers to use an Intel card.

Thank you for your effort.

Best regards,

Frank

[Caguicla_Intel]

Hello Frank,

Good day!

Please be informed that we are currently investigating on this matter. Rest assured that we will give you an update as soon as possible but no later than 3 business days.

Hoping for your kind patience.

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

How are you doing?

We'd like to inform you that we are still looking into this matter. We will give you an update as soon as there is any but no later than 3-5 business days.

Have a lovely day ahead!

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

Good day!

Unfortunately there may be a delay in validation and testing of this nature as employees at Intel have been asked to work from home until future notice as a result of the Coronavirus. This makes it difficult to perform the Lab validation and testing required.

We apologize for this inconvenience as we continue to work to resolve this case.

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

We sincerely apologize for the delay on this matter.

We have been informed that NIC teaming does not increase performance for point to point connections, in fact it will decrease performance because of the additional overhead of the team. If you were to connect the camera to a switch that supports Static LAG, and then send data to multiple systems, then the overall bandwidth to those systems could be increased.

Sharing the link below for your reference wherein stated that multiple destination works best for teaming.

Teaming with Intel® Advanced Network Services

https://www.intel.com/content/www/us/en/support/articles/000005667/network-and-i-o/ethernet-products.html

Throughput is always higher to multiple addresses than to a single address, regardless of the number of adapters.

Let us know if you have additional questions and clarifications on this matter.

Looking forward to hear from you.

Should there be no response, we will follow up after 3 business days.

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

Good day!

Please let us know if you have additional assistance needed from Intel Ethernet team for us to further help you.

Awaiting to your reply.

We will follow up after 3 business days in case we don't hear from you.

Best Regards,

Crisselle C

Intel Customer Support

[Caguicla_Intel]

Hello Frank,

How are you today?

Please be informed that we will now close this request since we haven't received any response from our previous follow ups. Just feel free to post a new question if you may have any other inquiry in the future.

Best Regards,

Crisselle C

Intel Customer Support