Interlogix NS3500-28T-4S User Manual - Manual (Page 147)

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4.6.2 STP Global Settings
This page allows you to configure STP system settings. The settings are used by all STP Bridge instances in the
Switch. The Managed Switch support the following Spanning Tree protocols:
‧ Compatiable -- Spanning Tree Protocol (STP): Provides a single path between end stations, avoiding
and eliminating loops.
‧ Normal -- Rapid Spanning Tree Protocol (RSTP): Detects and uses of network topologies that provide
faster spanning tree convergence, without creating forwarding loops.
‧ Extension – Multiple Spanning Tree Protocol (MSTP): Defines an extension to RSTP to further develop
the usefulness of virtual LANs (VLANs). This "Per-VLAN" Multiple Spanning Tree Protocol configures a
separate Spanning Tree for each VLAN group and blocks all but one of the possible alternate paths within
each Spanning Tree.
The STP Global Settings screens in Figure 4-6-4 & Figure 4-6-5 appear.
Figure 4-6-4 Global Settings Page Screenshot
The page includes the following fields:
Object Description
 Enable Enable or disable the STP function. The default value is "Disabled".
 BPDU Forward Set the BPDU forward method.
 PathCost Method The path cost method is used to determine the best path between devices.
Therefore, lower values should be assigned to ports attached to faster media,
and higher values assigned to ports with slower media.