Moxa Technologies EDS-518A Series Now Active:, Root/Not Root, Bridge priority, Max. Age (sec.), Forwarding Delay, Hello time (sec.), Protocol of Redundancy

EDS-518A Series User’s Manual Featured Functions

Now Active:

This will show which communication protocol is being used—Turbo Ring, RSTP, or neither.

Root/Not Root

This field will appear only when selected to operate in RSTP mode. It indicates whether or not this EDS-518A is the Root of the Spanning Tree (the root is determined automatically).

At the bottom of this page, the user can configure the “Settings” of this function. For RSTP, you can configure:

Protocol of Redundancy

Setting	Description	Factory Default
Turbo Ring	Select this item to change to the Turbo Ring	None
	configuration page.
RSTP (IEEE 802.1W/1D)	Select this item to change to the RSTP	None
	configuration page.
Bridge priority
Setting	Description	Factory Default
Numerical value selected	Increase this device’s bridge priority by	32768
by user	selecting a lower number. A device with a
	higher bridge priority has a greater chance of
	being established as the root of the Spanning
	Tree topology.
Forwarding Delay
Setting	Description	Factory Default
Numerical value input by	The amount of time this device waits before	15 (sec.)
user	checking to see if it should change to a
	different state.
Hello time (sec.)
Setting	Description	Factory Default
Numerical value input by	The root of the Spanning Tree topology	2
user	periodically sends out a “hello” message to
	other devices on the network to check if the
	topology is healthy. The “hello time” is the
	amount of time the root waits between sending
	hello messages.
Max. Age (sec.)
Setting	Description	Factory Default
Numerical value input by	If this device is not the root, and it has not	20
user	received a hello message from the root in an
	amount of time equal to “Max. Age,” then this
	device will reconfigure itself as a root. Once
	two or more devices on the network are
	recognized as a root, the devices will
	renegotiate to set up a new Spanning Tree
	topology.

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