SMC Networks SMC8606T manual Parameter Description

CONSOLE INTERFACE
Parameter	Description
Status	Displays the current state of this port within the spanning
	tree:
	Disabled	Port has been disabled by the user or has
		failed diagnostics.
	No Link	There is no valid link on the port.
	Blocking	Port receives STA configuration messages,
		but does not forward packets.
	Listening	Port will leave blocking state due to
		topology change, starts transmitting
		configuration messages, but does not yet
		forward packets.
	Learning	Has transmitted configuration messages for
		an interval set by the Forward Delay
		parameter without receiving contradictory
		information. Port address table is cleared,
		and the port begins learning addresses.
	Forwarding The port forwards packets, and continues
		learning addresses.
	The rules defining port status are:
	• A port on a network segment with no other
	STA-compliant bridging device is always forwarding.
	• If two ports of a switch are connected to the same
	segment and there is no other STA device attached to
	this segment, the port with the smaller ID forwards
	packets and the other is blocked.
	• All ports are blocked when the switch is booted, then
	some of them change state to listening, to learning,
	and then to forwarding.
Designated	The cost for a packet to travel from this port to the root
Cost	in the current spanning tree configuration. The slower
	the media, the higher the cost.
Designated	The priority and MAC address of the device through
Bridge (ID)	which this port must communicate to reach the root of
	the spanning tree.

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