configured-flow-control
Syntax
configured-flow-control {
rx-buffers (on | off);
tx-buffers (on | off);
}
Hierarchy Level
[edit interfaces interface-name ether-options]
Description
Configure Ethernet PAUSE asymmetric flow control
on an interface. You can set an interface to generate and send PAUSE
messages, and you can set an interface to respond to PAUSE messages
sent by the connected peer. You must set both the rx-buffers and the tx-buffers values when you configure asymmetric
flow control.
Use the flow-control and no-flow-control statements to enable and disable symmetric PAUSE on an interface.
Symmetric flow control and asymmetric flow control are mutually exclusive
features. If you attempt to configure both, the switch returns a commit
error.
Ethernet PAUSE temporarily stops transmitting all traffic on a link when the buffers fill to a certain threshold. To temporarily pause traffic on individual “lanes” of traffic (each lane contains the traffic associated with a particular IEEE 802.1p code point, so there can be eight lanes of traffic on a link), use priority-based flow control (PFC) by applying a congestion notification profile to the interface.
Ethernet PAUSE and PFC are mutually exclusive features, so you cannot configure both of them on the same interface. If you attempt to configure both Ethernet PAUSE and PFC on an interface, the switch returns a commit error.
Default
Flow control is disabled. You must explicitly configure Ethernet PAUSE flow control on interfaces.
Options
The remaining statements are explained separately. See CLI Explorer.
Required Privilege Level
interface—To view this statement in the configuration.interface-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 12.1.