Asante Technologies 6000 Series user manual Field Description Maximum Age, Hello Time, Hold Time

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Field	Description
Maximum Age	Read-only field; displays the maximum permissible
	age, in seconds, provided by the current Root Bridge
	for Spanning Tree configuration information to
	remain active on the selected bridge.
	When the time-span expires and the bridge has not
	received any BPDUs, it discards the current Spanning
	Tree information and initiates a new round of Span-
	ning Tree configuration.
	All the bridges in the Spanning Tree receive this value
	in a BPDU from the root bridge, and they display the
	value in this field.
	If the age value is too small, it can cause unnecessary
	Spanning Tree reconfigurations and possibly a tem-
	porary loss of connectivity on the network. If the
	value is too large, the network takes longer than nec-
	essary to adjust to a new Spanning Tree after a bridge
	goes down or a link is lost, which can cause collisions.
Hello Time	Read-only field; displays the amount of time, in sec-
	onds, provided by the current Root Bridge between
	transmissions of configuration BPDUs.
	The parameter works in parallel with the Spanning
	Tree Hold Time, which should be greater than the
	Hello Time. If it is smaller, the Spanning Tree Algo-
	rithm responds more quickly to configuration
	changes, resulting in increased network traffic.
Hold Time	Read-only field; displays the amount of time, in sec-
	onds, provided by the current root bridge that each
	configuration BPDU is held by the bridge before being
	sent out.
	This timer works in parallel with the Spanning Tree
	Hello Time and should be smaller than the Hello Time.
Forward Delay	Read-only field; displays the delay time, in seconds,
	provided by the current Root Bridge before a bridge
	starts forwarding data packets.
	Before a bridge changes a port from blocking to for-
	warding, it passes through the listening and learning
	transition states. The time the bridge spends between
	the listening and learning states and between the
	learning and forwarding states is the forward delay
	time.

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