1.) Switched Backbone
A switched backbone is a type of network backbone that uses network switches to connect different network segments or devices.
- It is commonly used within a single building or a small campus environment and is designed to improve communication speed and reduce traffic bottlenecks.
- They are ideal for small to medium-sized organizations, such as offices or schools, where rapid data communication and simple management are required.
Key Features
- Layer 2 Switching: Operates at the Data Link Layer, where switches direct data based on MAC addresses.
- Centralized Design: Typically involves a central switch or a hierarchy of switches to connect various sub-networks.
- High Speed: Switches provide direct data transmission paths, minimizing delays and improving performance.
- Scalability: Can easily add or remove switches and devices without disrupting the network.
Advantages
- Faster data transfer due to dedicated communication paths.
- Simplified network management with centralized control.
- Cost-effective for smaller networks with limited routing needs.
Disadvantages
- Limited routing capabilities (no Layer 3 functionality).
- Potential for broadcast storms if not properly configured.
2.) Routed Backbone
A routed backbone is a network backbone that uses routers to connect different network segments.
- It operates at the Network Layer (Layer 3) and routes data between segments based on logical IP addresses.
- They are suitable for large organizations, such as multinational corporations or universities, where complex network segmentation and robust security are essential.
Key Features
- Layer 3 Routing: Uses routing protocols to find the best path for data packets.
- Segmentation: Divides the network into multiple subnets, improving traffic management.
- Security and Control: Offers advanced security features, such as firewalls and access control, to regulate data flow.
- Redundancy: Supports failover mechanisms to maintain connectivity during device or link failures.
Advantages
- Enhanced traffic control and network segmentation.
- Supports complex network configurations with multiple subnets.
- Improved security through isolation of sub-networks.
Disadvantages
- Higher cost due to more sophisticated equipment and configuration.
- Greater complexity in setup and maintenance.