The Spanning Tree Algorithm is used for detecting and disabling network loops, and to provide
backup links between switches, bridges or routers. This allows the switch to communicate and
interact with other bridging (STA-compliant) devices in a network to ensure that only one route
exists between any two stations.
4.3.3.1 Bridge Configuration (Enable/Disable STP, Jet Ring or Xpress Ring)
Disabled:
disables the redundancy function.
STP 802.1D:
This activates a redundant link via the Spanning Tree Protocol.
Jet Ring:
This activates a redundant
link with a recovery time of less than
300 ms.
Xpress Ring:
This activates a
redundant link with a recovery time
of less than 50 ms.
STP Ports 1 – 8):
When enabled (“V”),
the selected port participates in the
STP algorithm execution of the switch
when “STP 802.1d” is selected.
When disabled (“–”), the port does
not participate.
Click “Undo” to restore previously saved settings; click “Save” to retain new entries.
4.3.3.2 STP System Configuration
NOTE:
For the options on the STP System Configuration screen to be accessible, “802.1D”
must be selected on the Bridge Configuration screen (see
4.3.3.1
above).
Bridge Priority:
Set the bridge priority between 0 (the highest priority) and 65535 (the lowest
priority). The bridge priority is used in selecting the root device, root port and designated port.
The device with the highest priority becomes the STA root device. However, if all devices have
the same priority, the device with the lowest MAC address will then become the root device.
Hello Time:
Set the time interval (in seconds) at which the root device transmits a configuration
message. The limits are 1 – 10 seconds.
Forward Delay:
Set the maximum time (in seconds) the root device will wait before changing
states (e.g., listening to learning to forwarding). The limits are 4 – 30 seconds.
Max. Age:
Set the waiting time for receiving packets before attempting to reconfigure the link.
The limits are 6 – 40 seconds.
Click “Undo” to restore previously saved settings; click “Save” to retain new entries.
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CONFIGURATION
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