To remove the configuration for the PFC buffer on all port pipes in a specified stack
unit, use the
no dcb stack-unit
stack-unit-id
[port-set
port-set-
id
] pfc-buffering pfc-ports pfc-queues
command.
Parameters
stack-unit-id
Enter the stack unit identification. The range is from 0 to 5.
port-set
Enter the port-set identification. The only valid port-set ID
(port-pipe number) on an MXL Switch is 0.
pfc-ports
{
1-56
}
Enter the pfc-ports. The range is from 1 to 56.
pfc-queues
{
1-2
}
Enter the pfc-queue number. The range is from 1 to 2.
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 switches in the stack.
dcbx port-role
Configure the DCBX port role the interface uses to exchange DCB information.
Syntax
dcbx port-role {config-source | auto-downstream | auto-upstream
| manual}
To remove DCBX port role, use the
no dcbx port-role {config-source |
auto-downstream | auto-upstream | manual}
command.
Data Center Bridging (DCB)
425
