priority-flow-control

Enables priority flow control (PFC) on a priority group.
Syntax
priority-flow-controlpriority-group-number
no priority-flow-controlpriority-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 for RUCKUS ICX 7550 and ICX 7850 devices only.

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 at the interface level on ICX 7850 devices.

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

Examples

The following example enables PFC for priority group 2: 

device# configure terminal
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.
09.0.10a PFC support was extended to ICX 7850 devices at the global level.
Parent topic: Commands O, P, Q, R, and Sa through Sh