SMC Networks SMC6608M, SMC6608T Spanning Tree Information Screen Items, Parameter Description

	CONFIGURATION AND MANAGEMENT
Spanning Tree Information Screen Items
Parameter	Description
Hello Time	Displays the rate (in seconds) at which hello frames are
	generated.
Forward Delay	The amount of time (in seconds) any port in the Spanning
	Tree will wait before changing states (i.e., listening to
	learning, etc.).
Root Port	The port on the switch that communicates with the root
	device of the Spanning Tree. If the switch is the root device,
	then “No_Port” will appear in this field.
Topology Change	The number of times a port has entered the forwarding state
Count	plus the number of times a port has changed from
	forwarding to blocking.
Time Since Last	The time since a port has entered the forwarding state or
Topolgy Change	changed from forwarding to blocking.
Max Message Age	The maximum time (in seconds) a device in the Spanning
	Tree can wait for a message before reconfiguring.
Root	MAC address of the root device in the Spanning Tree.
Root Cost	The path cost from the switch’s root port to the root device.
State	The current state of the port within the Spanning Tree:
	Disabled - Port has been disabled or failed diagnostics.
	Blocked - Port receives STP configuration messages,
	but does not forward packets.
	Listening - Port leaves Blocking state, transmits configur-
	ation messages, but does not yet forward packets.
	Learning - Port has transmitted configuration messages,
	address table cleared, port begins learning addresses.
	Forwarding - Port forwards packets and learns addresses.
Designated Cost	The cost for a packet to go from this port to the root. The
	slower the media, the higher the cost.
Designated Bridge	The priority and MAC address of the device through which
ID	this port must communicate to reach the root.
Designated Port	The port on the designated bridge through which the switch
	must communicate to reach the root.

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