Does ConnectX-5 support receiver-congestion handling?

In this post, I find that ConnectX-4 support this function, I tried to configure it with ConnectX-5, but mstcongestion return “-E- Failed to perform the operation: Mark action is not supported!”

So does connectX-5 support this function ?

Hello Hexiang,

As this article is only applicable for the Multi-host ConnectX-4 Lx configuration, for the ConnectX-5 adapter, please review the following UM section related to ECN configuration →

The ‘mstcongestion’ tool is only applicable for multi-host devices. See the following link for more information about the tool →

Thank you and regards,

~NVIDIA Networking Technical Support