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4-2-7. RSTP
RSTP detects and resolves network loops, and provides backup links
between switches, bridges and routers. The protocol allows a switch to
communicate with other RSTP compliant switches, and to ensure only one path
existing between two stations in your network environment.
The switch allows you to create multiple STP configurations and assign ports
to a specific tree.
Function name:
RSTP System Configuration
Function description:
This screen is used to display the RSTP system configuration and set the
need of parameters.
Parameter description:
System Priority:
System priority is used in determining the root switch, root port and
designated port. The switch with the highest priority (lowest numeric
value) becomes the STP root switch. If all switches have the same
priority, the switch with the lowest MAC address will then become the
root switch. Select a vale from the drop-down list box.
The lower the numeric value you assign, the higher the priority for this
system.
Default: 32768
Hello Time:
This is the time interval in seconds between BPDU configuration
message generations by the root switch. The allowed range is 1 to 10
seconds.
Default: 2
Max Age:
This is the maximum time a switch can wait without receiving a BPDU
before attempting to reconfigure. The allowed range is 6 to 40 seconds.
Default: 20
Forward Delay:
This is the maximum time (in seconds) a switch will wait before changing
states. The general rule: 2 * (Forward Delay – 1) >= Max Age >= 2 *
(Hello Time + 1)
Default: 15
Force version:
Select RSTP or STP protocol from the drop-down list box.