Moxa Technologies EtherDevice User Manual page 77

Redundant Ring Configuration Items
Configuration Item
Root/Not Root
Bridge priority
Hello time (sec.)
Max. Age (sec.)
Forwarding delay (sec.)
Enable STP
Port Priority
Port Cost
Status
Description
Indicates if this device is or is not the Root of the Spanning
Tree (the root is determined automatically).
Increase this device's bridge priority by inputting 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.
The root of the Spanning Tree topology 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 (see below for further explanation).
If this device is not the root, and it has not 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 (see below for further explanation).
The amount of time this device waits before checking to see
if it should change to a different state (see below for further
explanation).
Enable or Disable the port as a node on the Spanning Tree
topology.
Increase this port's priority as a node on the Spanning Tree
topology by inputting a lower number.
Input a higher cost to indicate that this port is less suitable
as a node for the Spanning Tree topology.
Indicates the current Spanning Tree status of this port.
MOXA EtherDevice Server User's Manual 6-27
Featured Functions