IS5 COMMUNICATIONS iES6 Series User Manual page 35

Intelligent 6 port managed ethernet switches
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The following table describes the labels for the RSTP Information screen.
Label
Root Priority
Root Path Cost
Max Age Time
Hello Time (1-10)
Forwarding Delay Time
(4-30)
Path Cost
Port Priority
OperP2P
OperEdge
STP Neighbor
State
Role
iS5 Communications Inc.
Description
A value used to identify the root bridge. The bridge with the lowest value
and with the highest priority is selected as the root.
The Path Cost to the other bridge from the transmitting bridge at a specified
port.
The number of seconds a bridge waits without receiving Spanning-tree
Protocol configuration messages before attempting a reconfiguration.
The time that the Control Switch sends out the BPDU (Bridge Protocol Data
Unit) packet to verify the current status of RSTP. 2 x (Forward Delay Time
value –1) ≥ Max Age value ≥ 2 x (Hello Time value +1)
The number of seconds a port waits before changing from its Rapid Spanning
Tree Protocol learning/listening states to the forwarding state.
The cost of the path to the other bridge from this transmitting bridge at the
specified port. A number 1 through 200000000.
Which ports should be blocked by priority in LAN. A number 0 through 240.
The value of priority must be the multiple of 16.
Some of the rapid state transactions that are possible within RSTP are
dependent upon whether the port concerned can only be connected to
exactly one other bridge (i.e. It is served by a point-to-point LAN segment),
or it can be connected to two or more bridges (i.e. It is served by a shared
medium LAN segment). OperP2P shows the P2P status of the link to be
manipulated administratively. True means P2P enabling. False means P2P
disabling.
When True, OperEdge is enabled, the port is configured as an edge port and
directly connected to an end station and cannot create a bridging loop. False
means OperEdge disabled.
The port includes the STP mathematic calculation. True is not including STP
mathematic calculation. False is including the STP mathematic calculation.
The State of each port is Disabled or Forwarding.
The Role of each port is Disabled or Designated.
iES6 Series User's Manual
36

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