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4 configure rapid spanning tree protocol – ZyXEL Communications ES-2108 Series User Manual

Page 107

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Chapter 11 Spanning Tree Protocol

ES-2108 Series User’s Guide

107

11.4 Configure Rapid Spanning Tree Protocol

Use this screen to configure RSTP settings, see

Section 11.1 on page 101

for more information

on RSTP. Click the RSTP link in the Rapid Spanning Tree Protocol Status screen to display
the screen shown next.

Figure 55 Advanced Application > Spanning Tree Protocol > RSTP

The following table describes the labels in this screen.

Table 25 Advanced Application > Spanning Tree Protocol > RSTP

LABEL

DESCRIPTION

Status

Click Status to display the Rapid Spanning Tree Protocol Status screen (see

Figure 56 on page 109

).

Active

Select this check box to activate an STP tree. Clear this check box to disable an
STP tree.

Bridge Priority

Bridge 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 value from the drop-down list
box.
The lower the numeric value you assign, the higher the priority for this bridge.
Bridge Priority determines the root bridge, which in turn determines Hello Time,
Max Age and Forwarding Delay.

Hello Time

This is the time interval in seconds between BPDU (Bridge Protocol Data Units)
configuration message generations by the root switch. The allowed range is 1 to
10 seconds.