SMC Networks SMC8624/48T manual Port Configuration

PORT CONFIGURATION

-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. (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.)

-(Default: Autonegotiation enabled; Advertised capabilities for 1000BASE-T – 10half, 10full, 100half, 100full, 1000full; 1000BASE-SX/LX/LH – 1000full)

•Forced Mode – Shows the forced/preferred port type to use for the combination ports 21-24.

-Copper-Forced- Always uses the built-in RJ-45 port.

-Copper-Preferred-Auto- Uses the built-in RJ-45 port if both combination types are functioning and the RJ-45 port has a valid link.

-SFP-Forced- Always uses the SFP port (even if module is not installed).

-SFP-Preferred-Auto- Uses SFP port if both combination types are functioning and the SFP port has a valid link.

•Trunk – Indicates if a port is a member of a trunk. To create trunks and select port members, see “Creating Trunk Groups” on page 3-86.

Note: Auto-negotiation must be disabled before you can configure or force the interface to use the Speed/Duplex Mode or Flow Control options.

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