OS10 Enterprise Edition User Guide Release 10.4.0E(R3)

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Data center bridging eXchange

DCBX allows a switch to automatically discover and set up DCBX-enabled peers configured with compatible settings. In a converged data center network, DCBX provides plug-and-play capability for server, storage, and networking devices in an end-to-end solution.

DCBX uses LLDP to mediate the automatic negotiation and exchange of device settings, such as PFC and ETS. DCBX uses LLDP TLVs to perform DCB parameter exchange:
  • PFC configuration and application priority configuration
  • ETS configuration and ETS recommendation

This sample DCBX topology shows two 40GbE ports on a switch that are configured as DCBX auto-upstream ports and used as uplinks to top-of-rack (ToR) switches. The top-of-rack (ToR) switches are part of a fibre channel storage network.

Data center bridging eXchange


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