Flowcontrol – PLANET SGSD-1022 User Manual

Page 521

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User’s Manual of SGSD-1022 / SGSD-1022P

SGSW-2840 / SGSW-2840P

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

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