Atop Technology SE5416A User manual - Manual (Page 32)

Atop Industrial Serial Device Server
SE5408A/SE5416A Series
User Manual V 1.0
32
by bridges/switches to every port, the bridges/switches will repeatedly rebroadcast the
broadcast messages, and this can flood the network. STP creates a spanning tree and
disables those redundant links that are on the same level of the tree, which leaves only a
single active path between any two nodes. This function avoids flooding and increases
network efficiency. RSTP (Rapid Spanning Tree Protocol) are also supported. It is an
evolution of the STP. It has a slightly changed topology, which helps to provide a much
faster spanning tree convergence. The following table explains each STP option’s usage.
Label Description
Spanning Tree Choose whether to enable or disable Spanning tree.
Force Version Select STP or RSTP.
Priority
Configures the bridge priority in the range of 0 ~ 61440. The switch with lower bridge priority
has more chance to become a root bridge.
Maximum Age
If a device is not the root and it does not re ceive a hello message in within the “Maximum Age”,
it will reconfigure itself as a root, ranges from 6 to 40 seconds.
Hello Time
The amount of time that the root should wait before sending hello messages again, ranges
from 1 to 10 seconds.
Forward Delay
Configures the amount of time the device should wait before checking to see if it should change
from the learning state to the forwarding state. Lesser delay time means that the state will
change more quickly, ranges from 4 to 30 seconds.
Port Path Cost
Configures the port path cost in the range of 1~200000000. This value will affect the
combination path cost. The lowest combination path cost will be the best path to the Root
Bridge
Port Priority
Configures the port priority in the range of 0~240. The port with the lowest priority value has the
best route to the root bridge.
Port P2P
Selects P2P (point to point) connection type:
 Force No: Force Port P2P link false.
 Force Yes: Force Port P2P link to true.
 Auto: Set Port P2P link to auto detection.
Port Edge Choose whether the port is an edge connection.