User’s Manual of GSD-800S / GSD-802S / GSD-802PS
4.6.1 RSTP System Configuration
The “RSTP System Configuration” table allows configuring the spanning tree parameters.
Figure 4-24
RSTP System Configuration
The page includes the following fields:
•
System Priority
Specifies the bridge priority value. When switches or bridges are running STP,
each is assigned a priority. After exchanging BPDUs, the switch with the lowest
priority value becomes the Root Bridge. The bridge priority value is provided in
increments of 4096 (4K increments). For example, 0, 4096, 8192, etc.
The default value is
32768
.
•
Hello Time
Specifies the device Hello Time. The Hello Time indicates the amount of time in
seconds a root bridge waits between configuration messages.
Value Range: 1-10.
The default is
2
seconds.
•
Max Age
Specifies the device Maximum Age Time. The Maximum Age Time indicates the
amount of time in seconds a bridge waits before sending configuration messages.
Value Range: 6-40.
The default max age is
20
seconds.
•
Forward Delay
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.
Value Range : 4-30.
The default is
15
seconds.
•
Force version
Specifies the Force Protocol Version parameter for the switch. The options are
Normal and Compatible
Normal – Rapid STP (802.1w)
: Detects and uses of network topologies that
provide faster spanning tree convergence, without creating forwarding loops.
Compatible – Classis STP (802.1d)
: Provides a single path between end
