Pros and cons of static routing

Static routing has both advantages and limitations. In an interview, a clear and structured answer is usually expected.

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#Advantages of static routing

#1. Simplicity and predictability

• the route is set manually
• the router always carries traffic strictly along the specified path
• the network's behavior is easy to understand and control

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#2. No service traffic

• routers do not exchange routing information
• the network is not burdened with extra packets

This is especially important:

• on slow links
• in simple networks

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#3. Lower load on equipment

• no route computation is required
• fewer CPU and memory requirements

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#4. Increased security

• routes are not "advertised" on the network
• fewer opportunities for attacks on routing protocols

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#Disadvantages of static routing

#1. Poor scalability

• as the network grows, the number of routes increases sharply
• management becomes complex and inconvenient

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#2. No automatic adaptation

Important

• if a link fails, the route does not rebuild itself
• traffic can be lost until the administrator intervenes

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#3. Manual administration

• all changes must be made manually
• it is easy to make a mistake in addresses or masks

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#4. Not suited for dynamic networks

• inefficient when the topology changes often
• works poorly in large distributed networks

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#Short table

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#In short, for an interview

The advantages of static routing are simplicity, no service traffic, and high predictability. The disadvantages are no automatic adaptation, poor scalability, and the need for manual administration.