OpenVSwitch link under Complex Recipes doesn’t go anywhere

[Violet Syrotiuk]

We would like to work through the tutorial on OpenVSwitch under the “Complex Recipes.”  But if you click on it, you get nothing.  Can the link please be updated and/or corrected?

[Komal Thareja]

Hello Violet,

Thank you for informing us about this. The OpenVswitch notebook has been uploaded to the Jupyter Examples and is now accessible on GitHub here.

Please be aware that, due to limitations imposed by NVIDIA/Mellanox on how bridging is managed, the VM running the OVS switch must utilize dedicated NICs instead of BasicNICs. This example assumes that condition. We have identified an alternative solution currently undergoing testing. We will keep you updated once a solution is deployed to make this work with BasicNICs.

Appreciate your understanding.

Best regards,

Komal

[Acheme Acheme]

Removing my comment, because it has been answered.

• This reply was modified 8 months, 3 weeks ago by Acheme Acheme.

[Jackson Nichols]

Is there an estimated availability date on the updates that would make the OpenVSwitch work on BasicNICs?

[Komal Thareja]

The fix for BasicNICs is planned to be made available in the next software release 1.7 planned to be available by end of Spring semester.

Thanks,

Komal

• This reply was modified 8 months, 3 weeks ago by Komal Thareja.

[Violet Syrotiuk]

Thank you for this information, Komal.  However, it means that my students in this semester cannot build upon this work.  In the meantime, may we allocate a few SmartNICs?

[Paul Ruth]

Violet,

Is this for a research project or a classroom? If its a classroom, how many students are in the class?  How many students are there? How many ports do their OVS switches need?

Keep in mind that smart NICs for this will require a full NIC for every 2 ports that are on the OVS switch.  So a 4 port OVS switch will need two full smart NICs on the same hosts.

Paul

[Komal Thareja]

Good morning Violet and Jackson,

We have deployed a fix for the OVS Bridges. Experiments with OVS Bridges can now be conducted using NIC_Basic with the following host considerations.

 

Host Considerations:

Because of constraints imposed by NVIDIA/Mellanox, when utilizing NIC_Basic for an OVS bridge experiment, it is advisable to deploy the VM responsible for running the bridge on a separate host from the VMs linked to the bridge.

Additionally, it’s worth noting that this condition does not apply to NIC_ConnectX_5 and NIC_ConnectX_6 configurations.

 

Example Notebook:

Updated example is available at: https://github.com/fabric-testbed/jupyter-examples/blob/main/fabric_examples/complex_recipes/openvswitch/openvswitch.ipynb

Thanks,

Komal

[Violet Syrotiuk]

Good morning, Komal — thanks for this news, and your work on getting this tutorial up and running on Basic NICs!  I am sure it will be useful to many people.

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Komal Thareja

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