Thursday, April 14, 2011

Introduction to Dynamic Routing Protocol


Objectives
  • Describe the role of dynamic routing protocols and place these protocols in the context of modern network design.
  • Identify several ways to classify routing protocols.
  • Describe how metrics are used by routing protocols and identify the metric types used by dynamic routing protocols.
  • Determine the administrative distance of a route and describe its importance in the routing process.
  • Identify the different elements of the routing table.
  Function(s) of Dynamic Routing Protocols:
-Dynamically share information between routers.
-Automatically update routing table when topology changes.
-Determine best path to a destination.
 The purpose of a dynamic routing protocol is to:
-Discover remote networks
-Maintaining up-to-date routing information
-Choosing the best path to destination networks
-Ability to find a new best path if the current path is no longer available
    Components of a routing protocol:
  • Algorithm
In the case of a routing protocol algorithms are used for facilitating routing information and best path determination
  • Routing protocol messages
These are messages for discovering neighbors and exchange of routing information
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