124 Ethernet Configuration Commands
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Syntax
flowcontrol
{
auto | on
|
off
}
no flowcontrol
•
auto
—Enables auto-negotiation of Flow Control.
•
on
—Enables Flow Control.
•
off
—Disables Flow Control.
Default Configuration
Flow Control is off.
Command Mode
Interface configuration (Ethernet, port-channel) mode
User Guidelines
• Flow Control will operate only if duplex mode is set to FULL. Back Pressure will operate only
if duplex mode is set to HALF.
• When Flow Control is ON, the head-of-line-blocking mechanism of this port is disabled.
• If a link is set to NOT use auto-negotiation, the other side of the link must also be configured
to not use auto-negotiation.
• To select
auto
, ensure negotiation for Flow Control is enabled.
Example
In the following example, Flow Control is enabled on g5.
mdix
The
mdix
Interface Configuration mode command enables automatic crossover on a given
interface. To disable automatic crossover, use the
no
form of this command.
Syntax
mdix {on | auto}
no mdix
•
on
—Manual mdix
•
auto
—Auto mdi/mdix
Console(config)# interface ethernet g5
Console(config-if)# flowcontrol on
