dcb stack-unit all pfc-buffering pfc-port-count pfc-
queues
Configure the PFC buffer for all switches in the stack.
Syntax
dcb stack-unit all pfc-buffering pfc-port-count {
1-56
} pfc-
queues {
1-2
}
To remove the configuration for the PFC buffer on all switches in the stack, use the
no dcb stack-unit all pfc-buffering pfc-port-count pfc-queues
command.
Parameters
pfc-port-count
{
1-56
}
Enter the pfc-port count. The range is 1 to 56.
pfc-queues
{
1-2
}
Enter the pfc-queue number. The range is 1 to 2.
Defaults
The PFC buffer is enabled on all ports on the stack unit.
Command
Modes
CONFIGURATION
Command
History
Version 9.2(0.0)
Introduced on the M I/O Aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.
Version 8.3.16.1
Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
If you configure PFC on a 40GbE port, count the 40GbE port as four PFC-enabled
ports in the pfc-port number you enter in the command syntax.
To achieve lossless PFC operation, the PFC port count and queue number used for
the reserved buffer size that is created must be greater than or equal to the buffer
size required for PFC-enabled ports and lossless queues on the switch.
You must reload the stack or a specified stack unit (use the reload command in
EXEC Privilege mode) for the PFC buffer configuration to take effect.
Related
Commands
dcb stack-unit pfc-buffering pfc-port pfc-queues
– configures the PFC buffer for
all port pipes in a specified stack unit.
dcb stack-unit pfc-buffering pfc-port-count pfc-queues
Configure the PFC buffer for all port pipes in a specified stack unit by specifying the port-pipe number,
number of PFC-enabled ports, and number of configured lossless queues.
Syntax
dcb stack-unit
stack-unit-id
[port-set
port-set-id
] pfc-
buffering pfc-ports {
1-56
} pfc-queues {
1-2
}
424
Data Center Bridging (DCB)
