CHAPTER 11: CONFIGURING  SPANNING TREE
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    Enabled —Specifies the Edge Port is enabled on the port. 
    Disabled —Specifies the Edge Port is disabled on the port. 
    No Change —Maintains the current the Edge Port settings. This   
    is the default value. 
  Link Type — Specifies the RSTP link type. The possible field values    
  are: 
    Point to Point —Enables the device to establish a Point-to-Point   
    link on the port. Ports set to Full Duplex modes are considered    
    Point-to-Point port links. 
    Shared — Enables the device to establish a shared link on the    
    port. 
    Auto — Enables the device to establish automatically a Point-to   
    Point link. 
  Path Cost — Indicates the port contribution to the root path cost.    
  The path cost is adjusted to a higher or lower value, and is      
  used to forward traffic when a path is re-routed. The field range is    
  1-200,000,000. 
  Priority — Priority value of the port. The priority value influences    
  the port choice when a bridge has two ports connected in a loop    
  The priority value is between 0 -240. 
  Select Port(s) — Indicates the ports to be defined.
    Select All — Allows the user to assign the STP settings to all    
    ports. 
    Select None — Removes the ports selected.
2  Select the ports to be defined 
3   Define the fields. 
4   Click Apply. Spanning Tree is modified on the port, and the device    
  is updated.