Nortel Networks 24T manual Spanning Tree Port Configuration Screen Fields

		Using the Console Interface
Table 3-34.	Spanning Tree Port Configuration Screen Fields (continued)
Field	Description
Participation	Allows you to configure any (or all) of the switch ports for Spanning tree participation.
	When an individual port is a trunk member (see Trunk field), changing this setting for one
	of the trunk members changes the setting for all members of that trunk. You should
	consider how this can change your network topology before you change this setting (see
	“MultiLink Trunking Configuration Rules” on page 1-73).
	The Fast Learning parameter is the same as Normal Learning, except that the state
	transition timer is shortened to two seconds.
	Default Value	Normal Learning
	Range	Normal Learning, Fast Learning, Disabled
Priority	This read-only field is a bridge spanning tree parameter that prioritizes the port’s lowest
	path cost to the root. When one or more ports have the same path cost, the STA selects
	the path with the highest priority (lowest numerical value). See also Path Cost.
	Default Value	128
	Range	0 to 255
Path Cost	This read-only field is a bridge spanning tree parameter that determines the lowest path
	cost to the root.
	Default Value	10 or 100
		Path Cost = 1000/LAN speed (in Mb/s)
		The higher the LAN speed, the lower the path cost.
		See also Priority.
	Range	1 to 65535
State	This read-only field indicates the current port state within the spanning tree network.
	Each port can transition to various states, as determined by the Participation field setting.
	For example, when the Participation field is set to Disabled, the port does not participate
	in the STA and transitions to the Forwarding state (the default). When the Participation
	field is set to Enabled, the port transitions from the Disabled state through the Blocking,
	Listening, and Learning states before entering the Forwarding state.
	Default Value	Topology dependent
	Range	Disabled, Blocking, Listening, Learning, Forwarding

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