Nortel Networks 214393-A describes the STG tab items, Configuring and graphing ports, Description

Chapter 3 Configuring and graphing ports 81

Table 30 describes the STG tab items.

Table 30 STG tab items for a single port

Item	Description
StgId	The number of times this port has transitioned from the Learning
	state to the Forwarding state.
Priority	The value of the priority field that is contained in the first
	(in network byte order) octet of the (2-octet long) Port ID.
	The other octet of the Port ID is derived from the value of
	dot1dStpPort.
State	The port’s current state as defined by application of the
	Spanning Tree Protocol. This state controls the action a port
	takes when it receives a frame. If the bridge detects a port that is
	malfunctioning, it places that port into the broken state. For ports
	that are disabled (see EnableStp), this object has a value of
	disabled.
EnableStp	Allows you to select true or false to enable or disable STP.
FastStart	Allows you to select true or false to enable or disable FastStart.
PathCost	The contribution of this port to the cost of paths toward the
	spanning tree root, which include this port. The IEEE
	802.1D-1990 standard recommends that the default value of this
	parameter be in inverse proportion to the speed of the attached
	LAN.
DesignatedRoot	The unique Bridge Identifier of the bridge recorded as the Root
	in the Configuration BPDUs transmitted by the Designated
	Bridge for the segment to which the port is attached.
DesignatedCost	The path cost of the Designated Port of the segment connected
	to this port. This value is compared to the Root Path Cost field in
	received bridge PDUs.
DesignatedBridge	The Bridge Identifier of the bridge that this port considers to be
	the Designated Bridge for this port’s segment.
DesignatedPort	The Port Identifier of the port on the Designated Bridge for this
	port’s segment.
ForwardTransitions	The number of times this port has transitioned from the Learning
	state to the Forwarding state.

Reference for the BayStack 380-24F Gigabit Switch Management Software