Moxa Technologies EDS-405A, Руководство пользователя

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EDS-405A/408A Series User’s Manual Featured Functions
3-40
Bridge priority
Setting Description Factory Default
Numerical value
selected by user
Increase this device’s bridge priority by
selecting 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.
32768
Forwarding Delay
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 (sec.)
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 STP per Port
Setting Description Factory Default
Enable/Disable
Select to enable the port as a node on the
Spanning Tree topology.
Disabled
NOTE We suggest not enabling the 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.
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.
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