Designing Enterprise Network

To deliver best network design you need to know how to execute conceptual network infrastructure that will support the customers need that achieves effective performance , scalability and reliability

Effective Seven steps techniques are used to design the enterprise Network Infrastructure

1. First and foremost part is to Determine application and Data Requirement like bandwidth need , nature of traffic , Qos Needs , Unicast / Multicast and busty nature of traffic
   Factors to be considered when analyzing Data Traffic Requirements i.e Kbps per active users , Peek Load , Peek timing , Data , video Voice
   
2. After determining type of Traffic Need to design Logical Network i.e Mentioning Vlans , Subnets and determine number of subnets for effective performance and better routing
   
3. Physical design identification of components to be used in the physical lay out i.e Transmission media inter conncetivity between stacks of network , Fiber types Keeping in mind Residency and STP stuff as well
   
4. Selection of Devices a bit debatable issue which vendor to use depending upon there ability , and future needs , as i am Cisco Guy i will choose Cisco as you can get Wirelss to Voip products from Cisco and under single umbrella unified communication infrastructure from a single vendor no mix and mach technology and when you are going to upgrade you find out that vendor don't interact with this ... however selection of Products is tough task depending upon budget and limits as well i.e Select a software option that meet specified needs
   
5. Its time to do some binary word :) I love it .... Selecting IP addressing strategy and numbering good planing Good routing as will help your route summarizing so borrow some time for this and perform it in well mannered way . Selection of Routing Protocol is done
   
6. Edge Distribution Module Designing including connectivity Core and WAN modules.

Whole design stuff is based upon business Need whihc should be clarified before you carry out any work and must address 4 main factors

1. Cost
2. Performance
   
3. Scalability
   
4. Availability

If management want to compromise on availability no Backup fibers no STP easy Setup that all depends .. what is their need.


Better Information Gathering results in Better Design and Better and Easily scalable Network .... So Start with better information gathering and brain storming ;)