CLI Guide

Layer 2 Switching Commands 402
flowcontrol
Use the flowcontrol command in Global Configuration mode to configure
the flow control. To disable flow control, use the no form of this command.
Syntax
flowcontrol receive {on | off}
no flowcontrol receive
Default Configuration
Flow Control is enabled by default.
Command Mode
Global Configuration and Interface Configuration modes
User Guidelines
Dell EMC Networking switches implement receive flow control only. They
never issue a flow control PAUSE frame when congested, but do respect
received flow control PAUSE frames received from other switches. Disabling
flow control causes the switch to ignore received PAUSE frames.
Interface specific configuration overrides any global configuration.
Changing the flow control setting on a copper port restarts auto-negotiation
and causes a brief link-flap while auto-negotiation occurs. Changing the flow
control setting on a fiber port may cause a brief link flap as the PHY is reset.
Enabling flow control on some ports and not others can lead to excessive
packet loss in situations where some ports on the switch have been paused
and the internal packet buffers are consumed. This situation may cause traffic
loss on other ports that are not congested or flow controlled.
Example
console(config)#flowcontrol receive off
console(config)#flowcontrol receive on