ZyXEL Communications ES-2108 User Manual

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ES-2108 Series User’s Guide
Chapter 11 Spanning Tree Protocol
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Figure 41   Spanning Tree Protocol: Status 
The following table describes the labels in this screen.  
Table 22   Spanning Tree Protocol: Status 
LABEL
DESCRIPTION
Spanning Tree 
Protocol
This field displays Running if STP is activated. Otherwise, it displays Down
Configuration
Click Configuration to configure STP settings. Refer to 
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 bridge priority plus 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).
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.