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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 exists 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.
Function name:
RSTP Port Configuration
Function description:
Enable or disable RSTP protocol on the ports that are selected and set path cost.
Parameter description:
Protocol Enabled:
Just tick the check box (
;
)
beside the port x to enable LACP protocol, then press the
<Apply>
button to apply.
Edge:
