Moxa Technologies ToughNet, User Manual

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ToughNet NAT Router User's Manual Network Redundancy
5-3
Forwarding Delay (sec.)
Setting Description Factory Default
Numerical value input
by user The amount of time this device waits before checking to see if it
should change to a different state. 15
Hello time (sec.)
Setting Description Factory Default
Numerical value input
by user 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. 2
Max. Age (sec.)
Setting Description Factory Default
Numerical value input
by user 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. 20
Enable RSTP per Port
Setting Description Factory Default
Enable/Disable Select to enable the port as a node on the Rapid Spanning Tree
Protocol. Disabled
NOTE We suggest not enabling the Rapid Spanning Tree Protocol once the port is connected to a device (PLC, RTU,
etc.) as opposed to network equipment. The reason is that it will cause unnecessary negotiation.
Setting Description Factory Default
Auto 1. If the port does not receive a BPDU within 3 seconds, the
port will be in the forwarding state.
2. Once the port receives a BPDU, it will start the RSTP
negotiation process.
Auto
Force Edge The port is fixed as an edge port and will always be in the
forwarding state
False The port is set as the normal RSTP port
Port Priority
Setting Description Factory Default
Numerical value
selected by user Increase this port’s priority as a node on the Spanning Tree
topology by entering a lower number. 128
Port Cost
Setting Description Factory Default
Numerical value input
by user Input a higher cost to indicate that this port is less suitable as a
node for the Spanning Tree topology. 200000
Port Status
Indicates the current Spanning Tree status of this port. Forwarding for normal transmission, or Blocking to
block transmission.