Addendum

dcb pfc-total-buffer-size
Configure the total buffer size for PFC in kilobytes. This utility is supported on the S6000 platform.
S6000
Syntax
dcb pfc-total—buffer—size KB
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 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 existing configuration. In such a scenario, you must disable
and reenable 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
S4810-YU-MR-FTOS (conf)#dcb pfc-total-buffer-size 5000
S4810-YU-MR-FTOS (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
Displays the DCB buffer threshold details in the running configuration. This command is supported on the
S6000 platform.
Syntax
show running—config buffer-threshold
Command
Modes
EXEC
EXEC Privilege
Data Center Bridging (DCB)
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