User`s manual

TN-5516/5518 Series Featured Functions
3-37
Configuring STP/RSTP
The following figures indicate which Spanning Tree Protocol parameters can be configured. A more detailed
explanation of each parameter is given below the figure.
At the top of this page, the user can check the Current Status of this function. For RSTP, you will see:
Now Active:
This field shows which communication protocol is being used—Turbo Ring, Turbo Ring V2, Turbo Chain, RSTP,
or neither.
Root/Not Root
This field appears only for RSTP mode. It indicates whether or not this TN-5500 is the Root of the Spanning Tree
(the root is determined automatically).
At the bottom of this page, the user can configure the Settings for the selected protocol. For RSTP, you can
configure:
Redundancy Protocol
Setting Description Factory Default
Turbo Ring This selects the Turbo Ring protocol. None
Turbo Ring V2 This selects the Turbo Ring V2 protocol. None
Turbo Chain This selects the Turbo Chain protocol. None
RSTP (IEEE
802.1w/1D)
This selects the RSTP protocol. None
Bridge Priority
Setting Description Factory Default
Numerical value
selected by user
This specifies the TN-5500’s bridge priority. A lower number
means a higher priority, which means a greater chance of being
established as the root of the Spanning Tree topology.
32768
Forwarding Delay
Setting Description Factory Default
Numerical value input
by user
This specifies the amount of time this device will wait before
checking to see if it should change to a different state.
15 (sec.)