ZyXEL Communications XGS-4728F User Manual
Page 135
Chapter 13 Spanning Tree Protocol
XGS-4728F User’s Guide
135
The following table describes the labels in this screen.
Table 31 Advanced Application > Spanning Tree Protocol > Status: RSTP
LABEL
DESCRIPTION
Configuration
Click Configuration to specify which STP mode you want to activate.
Click RSTP to edit RSTP settings on the Switch.
Bridge
Root refers to the base of the spanning tree (the root bridge). Our
Bridge is this Switch. This Switch may also be the root bridge.
Bridge ID
This is the unique identifier for this bridge, consisting of the bridge
priority plus the MAC address. This ID is the same for Root and Our
Bridge if the Switch is the root switch.
Hello Time
(second)
This is the time interval (in seconds) at which the root switch transmits
a configuration message. The root bridge determines Hello Time, Max
Age and Forwarding Delay.
Max Age
(second)
This is the maximum time (in seconds) a switch can wait without
receiving a configuration message before attempting to reconfigure.
Forwarding
Delay (second)
This is the time (in seconds) the root switch will wait before changing
states (that is, listening to learning to forwarding). See
for information on port states.
Note: The listening state does not exist in RSTP.
Cost to Bridge
This is the path cost from the root port on this Switch to the root
switch.
Port ID
This is the priority and number of the port on the Switch through which
this Switch must communicate with the root of the Spanning Tree.
Topology
Changed Times
This is the number of times the spanning tree has been reconfigured.
Time Since Last
Change
This is the time since the spanning tree was last reconfigured.