SMC Networks SMC6824M manual 118

Models: SMC6824M

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CONFIGURING THE SWITCH

the capabilities to be advertised. When auto-negotiation is disabled, you can force the settings for speed, mode, and flow control.The following capabilities are supported.

-10half - Supports 10 Mbps half-duplex operation

-10full - Supports 10 Mbps full-duplex operation

-100half - Supports 100 Mbps half-duplex operation

-100full - Supports 100 Mbps full-duplex operation

-1000full - Supports 1000 Mbps full-duplex operation

-Sym (Gigabit only) - When specified, the port transmits and receives pause frames; when not specified, the port will auto-negotiate to determine the sender and receiver for asymmetric pause frames. (The current switch chip only supports symmetric pause frames.)

-FC - Supports flow control

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 100BASE-TX – 10half, 10full, 100half, 100full; 1000BASE-T – 10half, 10full, 100half, 100full, 1000full; 1000BASE-SX/LX/LH – 1000full; 100BASE-FX – 100full

Trunk – Indicates if a port is a member of a trunk. To create trunks and select port members, see “Creating Trunk Groups” on page 3-120.

Note: Autonegotiation 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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SMC Networks SMC6824M manual 118