Planet Networking & Communication WSGW-24020 User Manual page 101

The page contains the following fields:
Global Setting
STP Operation Mode
BPDU Handling
Path Cost Default
Values
Bridge Settings
•
Priority
•
Hello Time
•
Max Age
•
Forward Delay
This indicates the STP mode by which STP is enabled on the device. The possible
field values are:
• Classic STP, where enables Classic STP on the device. This is the default
value.
• Rapid STP, where enables Rapid STP on the device.
• Multiple STP, where enables Multiple STP on the device.
This 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, where filters BPDU packets when spanning tree is disabled on an
interface. This is the default value.
•
Flooding, where floods BPDU packets when spanning tree is disabled on an
interface.
This 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.
• Long, specifies 1 through 200,000,000 range for port path costs. The default
path costs assigned to an interface varies according to the selected method.
Specifies the bridge priority value. When switches or bridges are running STP, each
is assigned a priority. After exchanging BPDUs, the device with the lowest priority
value becomes the Root Bridge.
The port priority value is provided in increments of 4096. For example, 4096, 8192,
12288, etc. The range is 0 to 65535.
The default value is 32768.
This specifies 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.
Where specifies the device Maximum Age Time. The Maximum Age Time indicates
the amount of time in seconds a bridge waits before sending configuration
messages.
The default max age is 20 seconds. The range is 6 to 40 seconds.
This specifies 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.
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User's Manual of WGSW-24020/WGSW-48040