| Spanning Tree
C
10
HAPTER
Configuring STP Global Settings
network. (References to "ports" in this section means "interfaces,"
which includes both ports and trunks.)
Root Hello Time — The interval (in seconds) at which this device
◆
transmits a configuration message.
Root Forward Delay — The maximum time (in seconds) this device
◆
will wait before changing states (i.e., discarding to learning to
forwarding). This delay is required because every device must receive
information about topology changes before it starts to forward frames.
In addition, each port needs time to listen for conflicting information
that would make it return to a discarding state; otherwise, temporary
data loops might result.
Topology Changes — The number of times the Spanning Tree has
◆
been reconfigured.
Last Topology Change Time — The time since the Spanning Tree was
◆
last reconfigured.
W
I
EB
NTERFACE
To configure global settings for Spanning Tree:
Click Configuration, Spanning Tree, STP Global Setting.
1.
Set the Spanning Tree Status to enabled.
2.
Modify other required parameters.
3.
Click Apply.
4.
Figure 22: STP Global Setting
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