Analysis and Design of a Modern SCADA System

Figure 2. 11 : Routing protocol classification

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   5. 
      
      
      
      4. 1 DSR (Dynamic Source Routing) protocol
         DSR is adopted in this research because of the following reasons
         [ 61 ]:
         1 - Source node alternative route awareness.
         2 - DSR is quick and easy to recover from link failures.
         3 - There are also no chances of routing loops as they are easily detected
         and avoided.
         4 - DSR works efficiently in lower mobility networks; it is efficient to
         this research, where all nodes are not mobile (fixed stations).
         5 - In smaller networks DSR outperformed other reactive protocol, when
         nodes are between10 to 20.
         6 - Route caching can further reduce route discovery overhead.
      
      
      
      
   
   
   
   

DSR is a reactive routing protocol that uses the arithmetic of the
source node routing where the source node determines the route that a data
packet should follow to the destination [52]. DSR works by using the
following two procedures to be completely self configured and self
organizing. These procedures are route discovery and route maintenance.
Unlike proactive protocols, DSR does not require periodic table update.
However, when a node wants to send a message to a destination, it uses