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

  • 18 November 2015
  • 4 replies

Does Cumulus Linux support DCB (date center bridging) and all subsequent protocols like PFC, SET, etc?

4 replies

Userlevel 5

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.


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.

Check out the link: http://docs.cumulusnetworks.com/display/CL25/Configuring+Buffer+and+Queue+Management
Userlevel 4
[quote=Mihir Mehta]Check out the link: Actually, this link would be better, since it's the most current doc set: [url=http://docs.cumulusnetworks.com/display/DOCS/Configuring+Buffer+and+Queue+Management]http://docs.cumulusnetworks.com/display/DOCS/Configuring+Buffer+and+Queue+Management