Administrator Guide

Parameters
KB Enter a number in the range of 0 to 7787.
Default The default is 1 KB for S6000 platforms.
Command Modes CONFIGURATION mode
Command History
Version Description
9.9(0.0) Introduced on the C9010.
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S6000 platform.
Usage Information
Configure the maximum buffer available for PFC traffic. You can choose to increase or decrease the buffer size
that is currently allocated in the system by default. However, if you modify the PFC buffer size to be lower than
the previously configured PFC buffer size, the system determines whether this reduction in size is valid without
disrupting the existing configuration. In such a scenario, you must disable and re-enable DCB. For example, if you
modify the total buffer size to be 4000 KB from the previous size of 5000 KB, an error message is displayed that
this reduction cannot be performed owing to existing system configuration because of queues that are being
currently processed.
The lossless queue limit per port is validated based on the dcb pfc-queues command. PFC queue
configuration identifies the maximum number of queues a port can support. Although the queue limit per port is a
baseline when dynamic buffering is enabled, the limit per port for queues depends on the availability of the buffer.
Example
Dell(conf)#dcb pfc-total-buffer-size 5000
Dell(conf)#dcb pfc-total-buffer-size 4000
%ERROR: Total pfc buffer size configured cannot accommodate existing buffer
requirement in the system.
show running-config dcb-buffer-threshold
Display the DCB buffer threshold details in the running configuration.
C9000 Series
Syntax
show running—config buffer-threshold
Command Modes
EXEC
EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S6000 platform.
Usage Information The following table describes the output fields displayed for the show running-config dcb-buffer-
threshold command:
Field Description
Profile name Name of the DCB buffer threshold profile
Data Center Bridging (DCB) 547