F Commands

This chapter describes the Cisco NX-OS quality of service (QoS) commands that begin with F.

flowcontrol

To enable IEEE 802.3x link-level flow control for the selected interface, use the flowcontrol command.

flowcontrol [ receive { on | off }] [ send { on | off }]

 
Syntax Description

receive

(Optional) Sets flow control in the receive direction.

off

Disables flow control traffic on an interface.

on

Enables flow control traffic on an interface.

send

(Optional) Sets flow control in the send direction.

 
Command Default

None

 
Command Modes

Interface configuration mode

 
Command History

Release
Modification

4.0(0)N1(1a)

This command was introduced.

5.0(3)N1(1)

Support for Layer 3 interfaces was added.

 
Usage Guidelines

You can use this command on the following interfaces:

  • Layer 2 interface
  • Layer 3 interface

Note Use the no switchport command to configure an interface as a Layer 3 interface.

Examples

This example shows how to enable flow control for traffic received on an interface:

switch# configure terminal
switch(config)# interface ethernet 1/2
switch(config-if)# flowcontrol receive on
 

 
Related Commands

Command
Description

no switchport

Configures an interface as a Layer 3 routed interface.

priority-flow-control

Sets the PFC mode for the selected interface.

show interface flowcontrol

Displays the detailed listing of the flow control settings on all interfaces.