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Cooper Bussmann 5073E-T Managed Ethernet Switch User Manual
51
Rev Version 1.1
RSTP Settings
The Spanning Tree - RSTP Settings page provides the bridge and port configuration interface for RSTP. You can
assign a higher or lower priority to each port. When RSTP is enabled, the port with the higher priority is in the
forwarding state and other ports are blocked to make certain there is no loop in the LAN.
To configure RSTP settings, choose
Configure
-->
Spanning Tree
-->
RSTP Settings
.
Figure 53 RSTP Setting
RSTP Mode
Enable or disable the RSTP function. When enabled, you can set the configuration fields
on this page.
Priority
Enter a priority value for the switch. Within the network, the switch assigned the
lowest value will have the highest priority and is selected as the root switch. If you
change the value, you will need to reboot the switch. The value must be a multiple
of 4096 according to the protocol standard rule. The root switch is responsible for
recovering the backup path when it finds that switch connections have been broken
for a period.
Max Age
Enter the number of seconds that this device waits before checking to see if it should
change to a different state. Enter a value from 6 to 40.
Hello Time
Enter the time interval (in seconds) at which the switch sends out the BPDU packet to
check the RSTP status. Enter a value from 1 to 10.
Forward Delay Time
Enter the number of seconds that a port waits before changing from its Rapid
Spanning-Tree Protocol learning and listening states to the forwarding state. Enter a
value from 4 to 30.
Admin Non STP
Select the port that you do not want enabled with RSTP.
Path Cost
Enter a number from 1 to 200,000,000 to indicate how suitable this port is as a node
for the Spanning Tree topology. A lower value indicates greater suitability.
Priority
Decide which port should be blocked by setting its priority as the lowest. Enter a
number from 0 to 240 that is a multiple of 16. For example, 0,16, or 32.
