MAN (Metropolitan Area Network)

A MAN is a computer network that spans a city or a large campus, connecting multiple local area networks (LANs) within a limited geographic area. It is larger than a LAN, but smaller than a WAN (Wide Area Network). MANs are commonly used by governments, universities, and large businesses to link buildings or branches across a city.

🔑 Key Features of MAN:

1. Geographic Scope

   • Covers a metropolitan area (typically between 5 to 50 kilometers).

   • Ideal for connecting offices or buildings across a city.

2. High Data Transfer Speeds

   • Often uses fiber optic cables or other high-speed infrastructure.

3. Public or Private Ownership

   • Can be owned and managed by internet service providers (ISPs), municipalities, or private companies.

4. Connects Multiple LANs

   • Acts as a bridge between LANs, creating a larger shared network.

🧩 Components of MAN:

• Routers – route traffic between networks

• Switches – distribute data within the network

• Fiber optic cables – provide fast, reliable transmission

• Servers and management systems – control network functions

✅ Advantages of MAN:

• High-speed communication within a city

• Centralized data access for organizations with multiple locations

• Cost-effective compared to using separate internet services for each LAN

• Supports advanced applications (video conferencing, data sharing)

❌ Disadvantages of MAN:

• High installation and maintenance costs

• Requires professional management and infrastructure

• Limited to one geographic region (not suitable for global reach)

🏢 Common Uses of MAN:

• Linking university campuses

• Connecting government buildings

• Bank branches in a city

• Smart city infrastructure and surveillance systems