Flow-Control Receive Enable - HP 3600 v2 Series Command Reference Manual

TxRx mode flow control enables an Ethernet interface to receive common pause frames from its peer, and
send common pause frames to notify its peer of congestions.
By default, generic flow control on an Ethernet interface is disabled.
With the flow-control command configured, an interface can both send and receive flow control frames:
• When congested, the interface sends a flow control frame to its peer.
Upon receiving a flow control frame from the peer, the interface suspends sending packets.
•
To implement flow control on a link, you must enable the generic flow control function at both ends of the
link.
Examples
# Enable TxRx mode generic flow control on the interface Ethernet1/0/1.
<Sysname> system-view
[Sysname] interface ethernet 1/0/1
[Sysname-Ethernet1/0/1] flow-control

flow-control receive enable

Syntax
flow-control receive enable
undo flow-control
View
Ethernet interface view
Default level
2: System level
Parameters
None
Description
Use flow-control receive enable to enable Rx mode generic flow control on an Ethernet port.
Use undo flow-control to disable generic flow control on an Ethernet interface.
Rx mode generic flow control enables an Ethernet interface to receive and process common pause
frames from its peer. The interface does not send common pause frames when it is congested.
By default, Rx flow control is disabled on Ethernet interfaces.
With the flow-control receive enable command configured, an interface can receive, but not send flow
control frames. When the interface receives a flow control frame from its peer, it suspends sending
packets to the peer. When traffic congestion occurs on the interface, it cannot send flow control frames
to the peer.
To handle unidirectional traffic congestion on a link, configure the flow-control receive enable command
at one end, and the flow-control command at the other. To enable both ends of the link to handle traffic
congestion, configure the flow-control command at both ends.
Examples
# Enable Rx mode generic flow control on Ethernet1/0/1.
<Sysname> system-view
18