SMC Networks SMC8624/48T manual 132

CONFIGURING THE SWITCH

•Path Cost – This parameter is used by the STP to determine the best path between devices. Therefore, lower values should be assigned to ports attached to faster media, and higher values assigned to ports with slower media. (Path cost takes precedence over port priority.) Note that when the Path Cost Method is set to short (page 3-63), the maximum path cost is 65,535.

-Range – Ethernet: 200,000-20,000,000 Fast Ethernet: 20,000-2,000,000 Gigabit Ethernet: 2,000-200,000

-Default – Ethernet – Half duplex: 2,000,000; full duplex: 1,000,000; trunk: 500,000

Fast Ethernet – Half duplex: 200,000; full duplex:

100,000; trunk: 50,000

Gigabit Ethernet – Full duplex: 10,000; trunk: 5,000

•Admin Link Type – The link type attached to this interface.

-Point-to-Point – A connection to exactly one other bridge.

-Shared – A connection to two or more bridges.

-Auto – The switch automatically determines if the interface is attached to a point-to-point link or to shared media. (This is the default setting.)

•Admin Edge Port (Fast Forwarding) – You can enable this option if an interface is attached to a LAN segment that is at the end of a bridged LAN or to an end node. Since end nodes cannot cause forwarding loops, they can pass directly through to the spanning tree forwarding state. Specifying Edge Ports provides quicker convergence for devices such as workstations or servers, retains the current forwarding database to reduce the amount of frame flooding required to rebuild address tables during reconfiguration events, does not cause the spanning tree to initiate reconfiguration when the interface changes state, and also overcomes other STA-related timeout problems. However, remember that Edge Port should only be enabled for ports connected to an end-node device. (Default: Disabled)

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