Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

PDF

dcb pfc-shared-buffer-size

Configure the maximum amount of shared buffer size for PFC packets in kilobytes.

Syntax

dcb pfc-shared—buffer—size KB

Parameters

KB	Enter a number in the range of 0 to 7787.

Default

None.

Command Modes

CONFIGURATION mode

Supported Modes

Full–Switch

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
9.3(0.0)	Introduced on the MXL platform.

Usage Information

Configure the maximum shared buffer available for PFC traffic. You can choose to increase or decrease the shared buffer that is allocated in the system by default. Configure the shared buffer size less than the total PFC buffer size. If the buffer size and DCB buffer threshold settings are applied on one or more ports, a validation is performed to determine whether following condition is satisfied: If the shared buffer size is more than the total PFC buffer size value, the configuration is not saved and a system logging message is generated as follows:

Shared-pfc-buffer-size <= (Total-pfc-buffer-size — Σpfc priority <> buffer-size on each port, priority).

Dell(conf)#dcb pfc-shared-buffer-size 2000

%ERROR: pfc shared buffer size configured cannot accommodate existing buffer requirement in the system.

Enter a smaller value for the shared buffer size or increase the total buffer size appropriately by using the dcb pfc-total- buffer-size command.

Example

Dell(conf)#dcb pfc-shared-buffer-size 5000