Static and Dynamic Routing

Routing controls how data packets move from source to destination, ensuring efficient and reliable delivery. It can be done in the following two ways:

1. Static Routing
2. Dynamic Routing

1. Static Routing

Static Routing is also known as non-adaptive routing which doesn't change the routing table unless the network administrator changes or modifies them manually. Static routing does not use complex routing algorithms and It provides higher or more security than dynamic routing. 

Advantages of Static Routing

• No CPU overhead on routers cheaper routers can be used.
• More secure only the administrator controls allowed routes.
• No bandwidth is consumed between routers.

Disadvantage of Static Routing

• Manually adding routes in large networks is time-consuming.
• It requires detailed knowledge of the network topology.
• New administrators must learn all routes to configure them correctly.

2. Dynamic Routing

Dynamic routing, also known as adaptive routing, automatically updates the routing table whenever there is a change in the network topology. It uses complex algorithms to calculate routes, but it is less secure compared to static routing. When a change occurs, routers exchange messages and recalculate the routes to ensure updated routing information is shared across the network.

Advantages of Dynamic Routing

• Easy to configure.
• More effective at selecting the best route to a destination remote network and also for discovering remote networks.

Disadvantage of Dynamic Routing

• Consumes morebandwidth for communicating with other neighbors.
• Less secure than static routing.

Difference between Static and Dynamic Routing