Owners Manual

---------------------------------------
6 0 0
Dell#show hardware stack-unit 1 buffer-stats-snapshot unit 0
resource port 1 prio 6
Stack-unit: 1 unit: 0 port: 1 (interface Te 1/50)
---------------------------------------
PG# SHARED CELLS HEADROOM CELLS
---------------------------------------
6 0 0
Dell#show hardware stack-unit 1 buffer-stats-snapshot unit 0
resource port 1 prio 6
Stack-unit: 1 unit: 0 port: 1 (interface Fo 1/1)
---------------------------------------
PG# SHARED CELLS HEADROOM CELLS
---------------------------------------
6 0 0
dcb pfc-total-buffer-size
Configure the total buffer size for PFC in kilobytes. This utility is supported on the S6000 platform.
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 Description
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
596
Data Center Bridging (DCB)