Spanning Tree; Stp Bridge Settings - Upvel UP-308FEW User Manual

UP-308FEW / UP-316FEW

Spanning Tree

This switch supports IEEE 802.1D-2004 Rapid Spanning Tree Protocol (RSTP) and is
backward compatible with legacy Spanning Tree Protocol (STP) standards.

STP Bridge Settings

This page allows to configure STP Mode and time settings. See the description below.
STP Mode: Disable, STP, RSTP. Select the STP version you want to enable. The default
setting is Disable.
Bridge Priority: This parameter defines the spanning tree priority globally for this switch. The
switch with the lowest value has the highest priority and is selected as the root device. If all
devices have the same priority, the device with the lowest MAC address will then become the
root device. According to the protocol standard rule, the value must be a multiple of 4096 in
the range of 0 to 61440. Thus, there are 16 distinct values. If the value is changed, the switch
must be rebooted.
Hello Time: Interval (in seconds) at which the root device transmits a configuration message
(BPDU frame) to check current STP status. Enter a value between 1 through 10 (the default is 2).
Max Age: The maximum time (in seconds) a switch waits without receiving Spanning-tree
Protocol configuration messages before attempting to reconfigure. That also means the
maximum life time for a BPDU frame. Enter a value between 6 through 40 (the default is 20).
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