EDS-510A Series User’s Manual Featured Functions
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Block
SwitchA
Switch B Switch C
VLAN1
VLAN2
802.1Q tagged,
10BaseTx
half-duplex Link
carries VLAN1, 2
(path cost = 100)
100BaseTX
full-duplex Link;
only carries VLAN2
(path cost = 18)
100BaseTX
full-duplex Link;
only carries VLAN1
(path cost = 18)
VLAN1
VLAN2
VLAN1
VLAN2
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).