A Proposed Design of Campus IP Network for Duhok University Using OPNET

Abstract

Duhok University has two main campuses. The first is the Malta campus located at the western part of the city and consists of seven colleges. The second one is the Duhok center which is located in the city center, it comprises six colleges in addition to the university chancellor office. This research paper proposes a network design for Duhok University to enable student and academic staff exchanges their academic and administrative information efficiently. The proposed IP Network design is made of three layers of which the core layer consists of two Cisco SONET 12012 which is connected by dual links. One of the SONETs is assigned to the Malta Campus and the other to Duhok center campus. The minimum spanning tree is calculated for the proposed IP network by using real distances between university colleges. At the distribution layer, a hierarchical topology is used to connect the college campus to its nearest main campus. The network is attached to the two ain FTP and HTTP servers. The data stream of each college is forwarded to Cisco router 4700. The user layer in each department is implemented using star topology through a Cisco switch 2924. Mobility access is added to the proposed design to support wireless devices. The design is implemented using OPNET 14.5 modular. Network performance and server's quality are tested by calculating (packet/second), delays, traffic send, traffic receives utility, and throughput in case of heavy load the network performance and server's quality. The results show that the proposed Duhok University IP network fulfills the network requirements and future expansion.