SMC Networks 7500A/VCP - annexe 1, Management Manual

Page: 209 / 316

I
NTERFACE
C
OMMANDS
3-73
flowcontrol
Use this command to enable flow control. Use the no form to disable flow
control.
Syntax
flowcontrol
no flowcontrol
Default Setting
Flow control enabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• Flow control can eliminate frame loss by “blocking” traffic from end
stations or segments connected directly to the switch when its buffers
fill. When enabled, back pressure is used for half-duplex operation and
IEEE 802.3x for full-duplex operation.
• Flow control should not be used if a port is connected to a hub.
Otherwise flow control signals will be propagated throughout the
segment.
• To force operation to the mode specified in a flowcontrol command,
use the no negotiation command to disable auto-negotiation on the
selected interface.
Example
The following example enables flow control on port 5.
Related Commands
capabilities (flowcontrol, symmetric)
Console(config)#interface ethernet 1/5
Console(config-if)#flowcontrol
Console(config-if)#no negotiation
Console(config-if)#