Asante Technologies 5212 user manual Spanning Tree Parameter Settings

Console Management

Table 5-9 Spanning Tree Parameter Settings

Setting	Description
Switch ID	The identification number of the IntraSwitch
	5212. This value cannot be changed.
Bridge Max Age	The Maximum Age timer; determines how
	long the IntraSwitch 5212 retains information
	received from BPDU (bridging Protocol Data
	Unit) packets.
	The default value is 20 seconds. This value
	cannot be changed.
Bridge Hello Time	The Hello timer; controls the frequency at
	which the IntraSwitch 5212 sends a BPDU or
	“hello” packet.
	BPDU packets provide information to the
	Spanning Tree bridges about the configuration
	of the Spanning Tree network.
	The default value is 2 seconds. (This causes
	the switch to broadcast a BPDU packet every
	two seconds.) This value cannot be changed.
Bridge Forward Delay	The number of seconds a bridge must wait
	before it changes a link from a listening state
	to a learning state and before it changes the
	link from a learning state to a forwarding state.
	The default value is 15 seconds (this means
	that after a link [or the entire IntraSwitch 5212]
	goes down and connectivity is re-established,
	the IntraSwitch 5212 waits approximately 30
	seconds [twice the default value] before it
	begins to forward traffic again). This value
	cannot be changed.

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