D-Link DES-5220TF Product Manual - Page 78
Spanning Tree Configuration
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Fast Ethernet Switching System User's Guide Spanning Tree Configuration The Spanning Tree Configuration panel is used to configure the Spanning Tree Algorithm. The Spanning Tree Algorithm (STA) in the DES-5200 enables you to create alternative paths (using multiple switches or bridges) in your network. These backup paths are idle until the DES-5200 determines that a problem has developed in the primary path. If the primary path breaks down STA will activate the backup path. STA is very complicated and you should understand it well before changing the default settings. See Table 12: User Selective STA Parameters. STA Operation Levels STA operates on the bridge level and the port level. On the bridge level, STA calculates the Bridge Identifier for each DES-5200, then sets the Root Bridge and the Designated Bridges. On the port level, STA sets the Root Port and Designated Ports. Spanning Tree Configuration Menu The Spanning Tree Configuration menu, displayed in Figure 40, enables you to enable or disable STA, set the bridge priority and other configurations. Figure 40: Spanning Tree Configuration Menu Managing the DES-5200 71