ZyXEL Communications ES-2024 Series, User Manual, Page: 113 / 282

Chapter 13 Spanning Tree Protocol
ES-2024 Series User’s Guide
113
Figure 59 Advanced Application > Spanning Tree Protocol > RSTP
The following table describes the labels in this screen.
Table 26 Advanced Application > Spanning Tree Protocol > RSTP
LABEL DESCRIPTION
Status Click Status to display the RSTP Status screen (see Figure 60 on page 115 ).
Active Select this check box to activate RSTP. Clear this check box to disable RSTP.
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.
Max Age This is the maximum time (in seconds) a switch can wait without receiving a BPDU
before attempting to reconfigure. All switch ports (except for designated ports)
should receive BPDUs at regular intervals. Any port that ages out STP information
(provided in the last BPDU) becomes the designated port for the attached LAN. If it
is a root port, a new root port is selected from among the switch ports attached to
the network. The allowed range is 6 to 40 seconds.