dcb support in Cumulus Linux; What HW is supported for DCB?

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  • Updated 3 years ago
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Does Cumulus Linux support DCB (date center bridging) and all subsequent protocols like PFC, SET, etc?
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Jan Berka

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Posted 3 years ago

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Scott Suehle, Alum

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This is currently not in the pipeline. It is possible as it is a software controlled resource but we currently only support LLDP. If you could give me a better understanding on what you are trying to accomplish maybe I can point you in the direction of a person or documentation that could help.


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Jan Berka

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Hi Scott,

I am using Quanta white box with Cumulus Linus as backend network for scale-out NAS storage system. Latest version of SDS SW added support for rNIC and RoCE (RDMA over converged Ethernet) for backend and client connectivity. I am investigating and preparing evaluation of possible performance improvement when using rNIC. The current storage performance is limited by latency of TCP/IP stack, so implementation of better stack would have impact on performance. NICs with RoCE needs switches with support for DCB/PFC.

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Mihir Mehta

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Pete B, Official Rep

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Actually, this link would be better, since it's the most current doc set: http://docs.cumulusnetworks.com/display/DOCS/Configuring+Buffer+and+Queue+Management