HOW A CAMPUS NETWORK IS DESIGNED

HOW A CAMPUS NETWORK IS DESIGNED

 WHAT IS CAMPUS NETWORK?

The people new to the networking world they must know what is a campus network..According to my point of view a campus network is an autonomous network under the  management of a single entity.

THE NETWORK INFRASTRUCTURE:

To design a network, your first step is information gathering, planning   the network based on the gathered information. The next step is network designing and modeling .There are numerous technologies which you can use to build your network but challenge is to choose the technology that suits best with your goal.

THINKS WE SHOULD CONSIDER WHILE DESIGNING:

ü  Avoid daisy chain network, build star network.

ü  Make the design modular

ü  Type of media between buildings.

ü  Security   measures.

ü  LOS   for wireless   transmission.

ü  Build separate edge and core networks.

ü  Always route into the core and switch at edges.

 HIERARCHICAL CAMPUS NETWORK DESIGN, A three tier model:

For the quality of service, follow the hierarchical design. This will make your network understandable and will help you to troubleshoot the traffic patterns. In the hierarchical design you can specify the position of a device, its functions and role in the network. Further in this approach you can expand your network when desired can redesign it, to meet today’s evolving technologies. The hierarchical design is down in figure.  First is the core layer, which directly communicates with the outer world, the internet world .The core layer should be design at layer 3 because it provides fast convergence and efficient bandwidth utilization. There must be a redundant link at core layer because faster convergence is needed.

Next is distribution layer which is multipurpose layer. It is basically a point for all access layer switches. Load Balancing and QoS should be kept in mind while designing. The access layer is the end users. The access layer switches are usually connected to the distribution layer via two switches for redundancy.

CHARACTERISTICS OF A WELL DEFINED NETWORK:

Following are the characteristics of a well defined network.

ü  Reliable

ü  Secured

ü  Scalable

ü  Responsively

**courtesy Engr Arshee ahmad BAHRIA university.