VOLKTEK NSH-5509 MANAGED 8-PORT 10/100 + 1-PORT 100-FX SWITCH
8.4.2 RSTP System Configuration
This screen allows the user to enter the RSTP parameters for the Switch. Please note:
users must select “RSTP (802.1W)” under Bridge Configuration to perform this
configuration. Otherwise, this option will not be accessible.
Enter the appropriate values, then click on “Apply” to implement newly entered
information or click on “Undo” to restore previously saved configurations.
Parameter Description
RSTP Force Version
Bridge Priority
Hello Time
Max. age
Forward Delay
Force the spanning tree algorithm to run on “RTP” or “RSTP” protocol
version
Set the bridge priority. The limit is given between 0 (the highest
priority) and 65535 (the lowest priority).
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.
Set the interval between hello bridge protocol data units (BPDUs) sent
by root switch configuration messages.
The limit given is from 1 – 10 seconds.
Set the interval between messages that the spanning tree receives
from the root switch. If a switch does not receive a bridge protocol data
unit (BPDU) message from the root switch within this interval, it will
reconfigure the spanning-tree topology. The limit given is from 6 – 40
seconds.
Set Forward Delay. The limit given is from 4~30 seconds. The
forwarding time specifies how long each of the listening and learning
states last before the port begins forwarding.
8.4.3 RSTP Per-Port Configuration
STP/RSTP allows the Switch to assign a priority status to each of its ports, with respect
to other networking nodes in the network. In other words, STP/RSTP determines the best
link for data to flow, given the priority level of each node on the network. Ensure that this
function is activated to avoid collisions and when setting up backup links.
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