NEC N8406-022 manual STP parameters

Table 19 STP parameters

Parameter	Description
FwdDel	The forward delay parameter specifies, in seconds, the amount of time that a bridge port has
	to wait before it changes from learning state to forwarding state.
Aging	The aging time parameter specifies, in seconds, the amount of time the bridge waits without
	receiving a packet from a station before removing the station from the Forwarding Database.
Priority (port)	The port priority parameter helps determine which bridge port becomes the designated port.
	In a network topology that has multiple bridge ports connected to a single segment, the port
	with the lowest port priority becomes the designated port for the segment.
Cost	The port path cost parameter is used to help determine the designated port for a segment.
	Generally speaking, the faster the port, the lower the path cost.
State	The State field shows the current state of the port. The State field can be one of the
	following: BLOCKING, LISTENING, LEARNING, FORWARDING, or DISABLED.
Designated	Shows information about the bridge connected to each port, if applicable. Information
bridge	includes the priority (hex) and MAC address of the Designated Bridge.
Designated port	The port ID of the port on the Designated Bridge to which this port is connected.

Rapid Spanning Tree and Multiple Spanning Tree information

The following command displays RSTP/MSTP information: show spanning-tree stp <1-32>information Command mode: All

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upfast disabled, update 40

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Spanning Tree Group 1: On (RSTP)

VLANs: 1-3 4095

Current Root:				Path-Cost		Port Hello MaxAge FwdDel Aging
8000 00:00:01:00:19:00					0	0	9	20	15	300
Parameters:		Priority Hello MaxAge FwdDel Aging
		32768		9	20		15	300
Port	Prio	Cost		State	Role	Designated Bridge Des Port				Type
----	----	----	------		---- --------------------- --------					----
1	0		0	DSB
2	0		0	DSB
3	0		0	DSB
4	0		0	DSB
5	0		0	DSB
6	0		0	DSB
7	0		0	DSB
8	0		0	DSB
9	0		0	DSB
10	0		0	DISC
11	0		0	FWD	DESG 8000-00:00:01:00:19:00				8017	P2P2,Edge
12	0		0	FWD	DESG 8000-00:00:01:00:19:00				8018	P2P

Information Commands 27