Moxa Technologies Moxa EtherDevice Switch, EDS-510A user manual Configuring STP/RSTP, Root/Not Root

EDS-510A Series User’s Manual Featured Functions

100BaseTX full-duplex Link; only carries VLAN1 (path cost = 18)

VLAN1

VLAN2

Switch A

100BaseTX full-duplex Link; only carries VLAN2 (path cost = 18)

Switch B	Switch C
	Block

VLAN1	802.1Q tagged,	VLAN1
VLAN2		VLAN2
	10BaseTx
	half-duplex Link
	carries VLAN1, 2
	(path cost = 100)

To avoid subdividing VLANs, all inter-switch connections should be made members of all available 802.1Q VLANs. This will ensure connectivity at all times. For example, the connections between Switches A and B, and between Switches A and C should be 802.1Q tagged and carrying VLANs 1 and 2 to ensure connectivity.

See the “Configuring Virtual LANs” section for more information about VLAN Tagging.

Configuring STP/RSTP

The following figures indicate which Spanning Tree Protocol parameters can be configured. A more detailed explanation of each parameter follows.

At the top of this page, the user can check the “Current Status” of this function. For RSTP, you will see:

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-510A is the Root of the Spanning Tree (the root is determined automatically).

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