SMC Networks 1000BASE-X Manual De Usuario

2-38

Note: Fast Forwarding enables end-node workstations and servers to 

overcome time-out problems when the Spanning Tree Algorithm 
is implemented in a network. Therefore, Fast Forwarding should 
only be enabled for ports connected to an end-node device.

(Path) Cost

100/19/4

This parameter is used by the STA algorithm 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.) 
The default and recommended range is:

Ethernet: 100 (50~600)

Fast Ethernet: 19 (10~60)

Gigabit Ethernet: 4 (3~10)

The full range is 1 - 65535.

Fast 

Forwarding

Enabled

This parameter is used to enable/disabled the Fast 

Spanning Tree mode for the selected port. In this 

mode, ports skip the Blocked, Listening and Learning 

states and proceed straight to Forwarding.