Dell Force10 S4810P FTOS Command Line Reference Guide for the S4810 System FTO - Page 602
pfc priority
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dot1p Value in the Incoming Frame 2 3 4 5 6 7 Description heading 0 1 2 3 3 3 pfc priority Configure the CoS traffic to be stopped for the specified delay. S4810 Syntax pfc priority priority-range To delete the pfc priority configuration, use the no pfc priority command. Parameters priority-range Enter the 802.1p values of the frames to be paused. Separate the priority values with a comma; specify a priority range with a dash; for example, pfc priority 1,3,5-7. The range is 0 to 7. Defaults Command Modes Command History none DCB INPUT POLICY Version 8.3.12.0 Version 8.3.16.0 Introduced on the S4810. Introduced on the MXL 10/40GbE Switch IO Module. Usage Information Related Commands You can enable any number of 802.1p priorities for PFC. 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 lossless queues for no-drop priorities in a PFC input policy and reapply the policy to an interface. The maximum number of lossless queues supported on the switch is two. A PFC peer must support the configured priority traffic (as detected by DCBX) to apply PFC. dcb-input - creates a DCB input policy. 602
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