A switched network is a communications network where users connect through message, circuit, or packet switching and control devices. It ensures efficient, reliable data transmission by using network switches.

Types of Switched Networks

Switched networks come in various forms, each designed to meet specific communication needs. Understanding the different types can help organizations choose the best solution for their requirements.

• Circuit Switched Network: A network where a single continuous physical circuit connects two endpoints, and the route is immutable once set up.

• Packet Switched Network: A network where individual packets each follow their own paths through the network from one endpoint to another.

• Public Switched Telephone Network (PSTN): An example of a circuit-switched network.

• Internet: An example of a packet-switched network.

Advantages of Using Switched Networks

Switched networks offer numerous advantages that make them an attractive choice for organizations looking to enhance their communication infrastructure. These benefits range from improved efficiency to enhanced security, making switched networks a versatile solution for various needs.

• Efficiency: Optimizes the use of network resources through dynamic management.

• Scalability: Can handle varying amounts of traffic and accommodate more users or devices.

• Security: Reduces vulnerability by minimizing the time connections are active.

• Reliability: Provides a collision-free environment with full-duplex communication.

• Flexibility: Enhances connectivity by allowing any user to connect to any other user.

Switched Network vs. Routed Network

Switched networks and routed networks serve different purposes in managing data flow within and between networks.

• Connection Method: Switched networks use switches to create dedicated connections for each session, while routed networks use routers to forward data based on IP addresses.

• Scalability: Switched networks are ideal for local area networks (LANs) with high-speed, collision-free communication, whereas routed networks excel in connecting multiple networks, including wide area networks (WANs).

Implementing Security on Switched Networks

Implementing security on switched networks is crucial for protecting sensitive data and ensuring reliable communication. By adopting best practices and leveraging advanced security features, organizations can mitigate risks and enhance their network's resilience.

• Access Control: Ensuring only authorized users can access network resources.

• Patch Management: Regularly updating software to fix vulnerabilities.

• Defense In-Depth: Using multiple security layers to protect against failures.

• Ingress Filtering: Blocking unauthorized inbound traffic.

• Role-Based Access Control: Assigning permissions based on user roles.