Digital Networks North America DNswitch 800 manual STA Port Configuration, Enabled

STA Port Configuration

The following figure and table describe STA configuration for ports.

Figure 3-17. STA Port Configuration

Parameter	Default	Description
Fast forwarding mode	ENABLED	Allows you to enable or disable fast forwarding for
		all ports on the switch.
Priority	128	Defines the priority for the use of a port in the STA
		algorithm. If the path cost for all ports on a switch
		are the same, the port with the highest priority
		(i.e., lowest value) will be configured as an active
		link in the spanning tree. Where more than one
		port is assigned the highest priority, the port with
		lowest numeric identifier will be enabled.
		The range is 0 - 255.
(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.
		The default and recommended range is:
		Standard Ethernet: 100 (50-600)
		Fast Ethernet:	19 (10-60)
		Gigabit Ethernet:	4 (3-10)
		The full range is 1 - 65535.

Note: Path cost takes precedence over port priority.

DNswitch 800 Configuring and Monitoring the Switch 25