Accton Technology ES3528M-SFP manual Displaying Spanning Tree Information, 235

3 Configuring the Switch

configuration message), a new root port is selected from among the device ports attached to the network. (References to “ports” in this section means “interfaces,” which includes both ports and trunks.)

•Root Forward Delay – The maximum time (in seconds) this device will wait before changing states (i.e., discarding to learning to forwarding). This delay is required because every device must receive information about topology changes before it starts to forward frames. In addition, each port needs time to listen for conflicting information that would make it return to a discarding state; otherwise, temporary data loops might result.

•Transmission limit – The minimum interval between the transmission of consecutive RSTP/MSTP BPDUs.

•Path Cost Method – The path cost is used to determine the best path between devices. The path cost method is used to determine the range of values that can be assigned to each interface.

Web – Click Spanning Tree, STA, Information.

Figure 3-87 Displaying Spanning Tree Information

CLI – This command displays global STA settings, followed by settings for each port.

Console#show spanning-tree 4-235

Spanning-tree information

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Spanning tree mode:		RSTP
Spanning tree enabled/disabled:		enabled
Priority:	Time (sec.):	32768
Bridge Hello		2
Bridge Max Age (sec.):		20
Bridge Forward Delay (sec.):		15
Root Hello Time (sec.):		2
Root Max Age	(sec.):	20
Root Forward	Delay (sec.):	15
Designated Root:		32768.0012CF0B0D00
Current root	port:	0
Current root	cost:	0
Number of topology changes:		1
Last topology changes time (sec.):2262
Transmission	limit:	3
Path Cost Method:		long

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