Dell Networking S6000 System, Reference Manual

Page: 496 / 1510

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 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
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
Command
History
Version 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:
496
Data Center Bridging (DCB)