Enterasys Networks VH-8G manual Configuring STA for Ports, Spanning Tree Port Configuration

Configuring STA for Ports

The following figure and table describe STA configuration for ports.

		Vertical Horizon Local Management -- VH-8G
	Fast forwarding mode of all ports : [Enable]						[Disable]
		Spanning Tree Port Configuration : Port					1 - 8
		Port	Type	Priority	Cost	FastForwarding
			----------------------------------------------------
		1	1000SX	128	4	ENABLED
		2	1000SX	128	4	ENABLED
		3	1000SX	128	4	ENABLED
		4	1000SX	128	4	ENABLED
		5	1000SX	128	4	ENABLED
		6	1000SX	128	4	ENABLED
		7	1000SX	128	4	ENABLED
		8	1000SX	128	4	ENABLED
			<APPLY>	<OK>	<CANCEL>
	Use <TAB> or arrow keys to move, other keys to make changes.
	Figure 2-24. Spanning Tree Port Configuration
Parameter		Default		Description
Fast forwarding mode		ENABLED		Allows you to enable or disable fast forwarding for
of all ports				all ports on the switch.
Type				Shows the port type as 1000SX (1000Base-SX).
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.

(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 0 - 65535.

9033640 VH-8G User Interface 31