Multi-level client-server network is a modernized form of client-server network for a special reason that is, here different applications and protocols are assigned in individual server. So, if one of the servers is crashed or stopped for a small or long time all the functions do not stop. It means all servers are individually configured such as DHCP server, DNS Server, Mail Server, FTP Server etc. for different purposes. In traditional client-Server Network system a client uses several applications from the same server. If the server is crashed, the total work of that network will be stopped. So, in case of corporate network it is essential to get flawless performance all the time. Corporate offices have their own head office, branch offices and e-commerce customers. To support all of them the corporate office can setup its own ISP to support the branch offices as well as the registered customers of the office. For better support without using multi-layer network they can use multi-level network to give flawless service to the office executives, marketers and the customers. By applying this multi-level network, professionals can easily save their time for network performances.

Md.Mamun Kabir Completed his B.Sc in Electronics and Telecommunication Engineering from Daffodil International University (DIU), Bangladesh. Now, he is working at A-Tex, a multinational firm as an IT Executive. His future plan is to contribute in the area of IT development.