Emerson PACSystems SLM042 - Page 28

PACSystems Ethernet Switch SLM042 User Manual Section 5
GFK-3123A Jan 2020
Web Management 24
The following table describes the labels in this screen.
Label
Description
RSTP mode
You must enable or disable RSTP function before configuring the
related parameters.
Priority (0-61440)
A value used to identify the root bridge. The bridge with the
lowest value has the highest priority and is selected as the root. If
the value changes, you must reboot the switch. The value must be
multiple of 4096 according to the protocol standard rule.
Max Age (6-40)
The number of seconds a bridge waits without receiving Spanning-
tree Protocol configuration messages before attempting a
reconfiguration. Enter a value between 6 through 40.
Hello Time (1-10)
The time that controls switch sends out the BPDU packet to check
RSTP current status. Enter a value between 1 through 10.
Forwarding Delay Time
(4-30)
The number of seconds a port waits before changing from its Rapid
Spanning-Tree Protocol learning and listening states to the
forwarding state. Enter a value between 4 through 30.
Path Cost (1-
200000000)
The cost of the path to the other bridge from this transmitting
bridge at the specified port. Enter a number 1 through
200000000.
Priority (0-240)
Decide which port should be blocked by priority in LAN. Enter a
number 0 through 240. The value of priority must be the multiple
of 16
Admin P2P
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). This function
allows the P2P status of the link to be manipulated administratively.
True means P2P enabling. False means P2P disabling.
Admin Edge
The port is directly connected to end stations, and it cannot create
bridging loop in the network. To configure the port as an edge
port, set the port to “True”.
Admin Non STP
The port includes the STP mathematic calculation. True is not
including STP mathematic calculation. False is including the STP
mathematic calculation.
Apply
Click “Apply” to activate the configurations.
NOTE: Follow the rule to configure the MAX Age, Hello Time, and Forward Delay Time:
2 x (Forward Delay Time value –1) ≥ Max Age value ≥ 2 x (Hello Time value +1)