priority-flow-control

Enables priority flow control (PFC) on a priority group.
Syntax
priority-flow-control priority-group-number
no priority-flow-control priority-group-number
Command Default

PFC is disabled globally.

Parameters
priority-group-number
Specifies a priority group. The range is from 0 through 3.
Modes

Global configuration mode

Usage Guidelines

This command is supported only on RUCKUS ICX 7250, ICX 7750, andICX 7450 devices. This command is not supported on RUCKUS ICX 7150, or the ICX 7650 devices.

To enable global PFC, symmetrical flow control (SFC) must be disabled.

You must enable PFC globally before you configure it for priority groups. Enabling PFC on a priority group enables PFC on all the ports.

PFC and 802.3x flow control are mutually exclusive. Configuring the priority-flow-control command disables 802.3x in both transmit and receive directions.

PFC is not supported for ports across stack units on RUCKUS ICX 7750 devices.

The no form of this command restores the default flow-control settings.

Examples

The following example enables PFC for priority group 2: 

Device(config)# priority-flow-control enable
Device(config)# priority-flow-control 2
History
Release version Command history
08.0.10 This command was introduced.
08.0.20 This command was modified. Specifying a priority group no longer enables PFC on all ports.
08.0.60 Added a usage guideline concerning the support of this command and that this command is not supported on the RUCKUS ICX 7150.
08.0.70 Added a usage guideline concerning the support of this command and that this command is not supported on the RUCKUS ICX 7650.
Parent topic: Commands O, P, Q, R, and Sa through Sh