Reference Guide

Usage
Information
If you do not use the statistics parameter, both hardware and DCBx counters
clear.
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}
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 9.3.0.0 Introduced on the FC Flex IO module installed in the M I/O
Aggregator and MXL 10/40GbE Switch
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.
dcb-input
To apply pause or flow control for specified priorities using a configure delay time, create a DCB input
policy.
Syntax
dcb-input policy-name
To delete the DCB input policy, use the no dcb-input command.
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FC Flex IO Modules