Filter
Top Products
EDS-408A/405A Series User’s Manual Featured Functions
3-26
Block
Switch A
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.
Configuring STP/RSTP
The following figures indicate the Spanning Tree Protocol parameters that can be configured. A
more detailed explanation of each parameter is given below the figure. (NOTE: The user interface
for EDS-408A shows 8 ports.)
At the top of this page, the user can check the Current Status of this function. For RSTP, you will
see:
Now Active:
This shows the communication protocol being used—Turbo Ring, RSTP, or none.
Root/Not Root
This is displayed only when RSTP is selected as the mode of operation. It indicates whether or not
this EDS is the Root of the Spanning Tree (the root is determined automatically).