Command Modes INTERFACECommand History This guide is platform-specific. For command information about other platforms, refer to the relevant DellNetworking OS Command Line Reference Guide.The following is a list of the Dell Networking OS version history for this command.Version Description9.10(0.0) Introduced on the S6100-ON.9.8(1.0) Introduced on the Z9100–ON.9.7(0.0) Introduced on the Z9500.9.0.2.0 Introduced on the S6000.8.3.19.0 Introduced on the S4820T.8.3.12.0 Introduced on the S4810.8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.Usage Information The default number of 802.1p priorities that you can enable for PFC is –2. The maximum number of 802.1ppriorities that you can enable for PFC is –4. Queues to which PFC priority traffic is mapped are lossless by default.Traffic may be interrupted due to an interface flap (going down and coming up) when you reconfigure the losslessqueues for no-drop priorities.The default number of lossless queues supported on the switch is two. The maximum number of lossless queuessupported on the system is 4.A PFC peer must support the configured priority traffic (as DCBX detects) to apply PFC.show dcbDisplays the data center bridging status, the number of PFC-enabled ports, and the number of PFC-enabled queues.Syntax show dcbCommand Modes EXEC PrivilegeCommand History This guide is platform-specific. For command information about other platforms, see the relevant Dell NetworkingOS Command Line Reference Guide.Version Description9.10(0.0) Introduced on the S6100-ON.9.8(1.0) Introduced on the Z9100–ON.9.7(0.0) Introduced on the S6000-ON and Z9500.9.0.2.0 Introduced on the S6000.8.3.19.0 Introduced on the S4820T.8.3.12.0 Introduced on the S4810.8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.480 Data Center Bridging (DCB)
