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Chapter 5: Using the Web-based Utility for Configuration
Spanning Tree Tab - Global STP
WebView Switches
Root Hello Time (sec).
Indicates the device Hello Time. The Hello Time indicates the amount of time in seconds
a root bridge waits between configuration messages. The default is 2 seconds. The range is 1 to 10 seconds.
Root Forward delay (sec).
Indicates the device forward delay time. The Forward Delay Time indicates the
amount of time in seconds a bridge remains in a listening and learning state before forwarding packets. The
default is 15 seconds. The range is 4 to 30 seconds.
Topology Changes Counts.
Indicates the total amount of STP state changes that have occurred.
Last Topology Change.
Indicates the amount of time that has elapsed since the bridge was initialized or reset,
and the last topographic change occurred. The time is displayed in a day hour minute second format, for
example, 2 days 5 hours 10 minutes and 4 seconds.
Spanning Tree Tab - Global STP
The Global STP screen contains parameters for enabling STP on the device.
Global Setting
Spanning Tree State.
Indicates if STP is enabled on the device.
STP Operation Mode.
Indicates the STP mode by which STP is enabled on the device. The possible field values
are:
•
Classic STP.
Enables Classic STP on the device. This is the default value.
•
Rapid STP.
Enables Rapid STP on the device.
•
Multiple STP.
Enables Multiple STP on the device.
BPDU Handling.
Determines how BPDU packets are managed when STP is disabled on the port/ device. BPDUs
are used to transmit spanning tree information. The possible field values are:
•
Filtering.
Filters BPDU packets when spanning tree is disabled on an interface. This is the default value.
•
Flooding.
Floods BPDU packets when spanning tree is disabled on an interface.
Path Cost Default Values.
Specifies the method used to assign default path costs to STP ports. The possible
field values are:
•
Short.
Specifies 1 through 65,535 range for port path costs. This is the default value.
Figure 5-47: Spanning Tree - Global STP