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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
516
Console(config)# interface ethernet 1/5
Console(config-if)# capabilities 100half
Console(config-if)# capabilities 100full
Console(config-if)# capabilities flowcontrol
Console(config-if)#
Related Commands
negotiation
speed-duplex
flowcontrol
flowcontrol
This command enables flow control. Use the no form to disable flow control.
Syntax
[no] flowcontrol
Default Setting
Disabled
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.
• 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.
Console(config)#interface ethernet 1/5
Console(config-if)#flowcontrol