Dell S4810 - Dcb Pfc-Total-Buffer-Size

To identify the port that is congested and monitor all the priority groups on that
particular port:
Dell#show hardware stack-unit 0 buffer-stats-snapshot unit 0
resource port 1 prio all
Stack-unit: 0 unit: 0 port: 1 (interface Fo 0/0)
---------------------------------------
PG# SHARED CELLS HEADROOM CELLS
---------------------------------------
0 0 0
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
Dell#
To determine the specific priority group, unicast or multicast queue that is
congested and monitor that queue separately:
Dell#show hardware stack-unit 0 buffer-stats-snapshot unit 0
resource port 1 prio 6
Stack-unit: 0 unit: 0 port: 1 (interface Fo 0/0)
---------------------------------------
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 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
Data Center Bridging (DCB)
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