I
NTERFACE
C
OMMANDS
25-8
To force flow control on or off (with the flowcontrol or no
flowcontrol command), use the no negotiation command to disable
auto-negotiation on the selected interface.
When using the negotiation command to enable auto-negotiation,
the optimal settings will be determined by the capabilities command.
To enable flow control under auto-negotiation, “flowcontrol” must
be included in the capabilities list for any port
Avoid using flow control on a port connected to a hub unless it is
actually required to solve a problem. Otherwise back pressure
jamming signals may degrade overall performance for the segment
attached to the hub.
Example
The following example enables flow control on port 5.
Related Commands
negotiation (25-5)
capabilities (flowcontrol, symmetric) (25-6)
media-type
This command forces the port type selected for combination ports 17-18.
Use the no form to restore the default mode.
Syntax
media-type mode
no media-type
mode
Console(config)#interface ethernet 1/5
Console(config-if)#flowcontrol
Console(config-if)#no negotiation
Console(config-if)#